Pregunta 1
Pregunta
Which type of traffic is designed for a native VLAN?
Respuesta
-
management
-
user-generated
-
untagged
-
tagged
Pregunta 2
Pregunta
Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number?
Respuesta
-
The NTP master will claim to be synchronized at the configured stratum number.
-
An NTP server with a higher stratum number will become the master.
-
Other systems will be willing to synchronize to that master using NTP.
-
The NTP master will be the clock with 1 as its stratum number.
-
The NTP master will lower its stratum number.
Pregunta 3
Pregunta
A network engineer has created a standard ACL to control SSH access to a router. Which command will apply the ACL to the VTY lines?
Respuesta
-
access-group 11 in
-
access-class 11 in
-
access-list 11 in
-
access-list 110 in
Pregunta 4
Pregunta
A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.)
Respuesta
-
vty lines
-
VTP domain
-
loopback address
-
default gateway
-
default VLAN
-
IP address
Pregunta 5
Pregunta
A network administrator configures a router to provide stateful DHCPv6 operation. However, users report that workstations do not receive IPv6 addresses within the scope. Which configuration command should be checked to ensure that statefull DHCPv6 is implemented?
Respuesta
-
The dns-server line is included in the ipv6 dhcp pool section.
-
The ipv6 nd managed-config-flag is entered for the interface facing the LAN segment.
-
The ipv6 nd other-config-flag is entered for the interface facing the LAN segment.
-
The domain-name line is included in the ipv6 dhcp pool section.
Pregunta 6
Pregunta
Which characteristic describes cut-through switching?
Respuesta
-
Frames are forwarded without any error checking.
-
Error-free fragments are forwarded, so switching occurs with lower latency.
-
Buffering is used to support different Ethernet speeds.
-
Only outgoing frames are checked for errors.
Pregunta 7
Pregunta
Refer to the exhibit. A company has an internal network of 172.16.25.0/24 for their employee workstations and a DMZ network of 172.16.12.0/24 to host servers. The company uses NAT when inside hosts connect to outside network. A network administrator issues the show ip nat translations command to check the NAT configurations. Which one of source IPv4 addresses is translated by R1 with PAT?
Respuesta
-
10.0.0.31
-
172.16.12.5
-
172.16.12.33
-
192.168.1.10
-
172.16.25.35
Pregunta 8
Pregunta
Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?
Respuesta
-
The default gateway address is not provided in the pool.
-
No clients have communicated with the DHCPv6 server yet.
-
The IPv6 DHCP pool configuration has no IPv6 address range specified.
-
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
Pregunta 9
Pregunta
Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?
Respuesta
-
ip dhcp pool
-
ip address dhcp
-
service dhcp
-
ip helper-address
Pregunta 10
Pregunta
Which kind of message is sent by a DHCP client when its IP address lease has expired?
Respuesta
-
a DHCPDISCOVER broadcast message
-
a DHCPREQUEST broadcast message
-
a DHCPREQUEST unicast message
-
a DHCPDISCOVER unicast message
Pregunta 11
Pregunta
Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4 address. What is the problem?
Respuesta
-
A DHCP server must be installed on the same LAN as the host that is receiving the IP address.
-
R1 is not configured as a DHCPv4 server.
-
The ip address dhcp command was not issued on the interface Gi0/1.
-
The ip helper-address command was applied on the wrong interface.
Pregunta 12
Pregunta
A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228-236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home?
Respuesta
-
ip nat pool mktv 10.18.7.5 10.18.7.5
-
ip nat outside source static 10.18.7.5 209.165.200.225
-
ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
-
ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443
ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365
-
No additional configuration is necessary.
Pregunta 13
Pregunta
What is a disadvantage of NAT?
Respuesta
-
There is no end-to-end addressing.
-
The router does not need to alter the checksum of the IPv4 packets.
-
The internal hosts have to use a single public IPv4 address for external communication.
-
The costs of readdressing hosts can be significant for a publicly addressed network.
Pregunta 14
Pregunta
Which type of traffic would most likely have problems when passing through a NAT device?
Respuesta
-
Telnet
-
IPsec
-
HTTP
-
ICMP
-
DNS
Pregunta 15
Pregunta
What benefit does NAT64 provide?
Respuesta
-
It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
-
It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
-
It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
-
It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.
Pregunta 16
Pregunta
Refer to the exhibit. The Gigabit interfaces on both routers have been configured with subinterface numbers that match the VLAN numbers connected to them. PCs on VLAN 10 should be able to print to the P1 printer on VLAN 12. PCs on VLAN 20 should print to the printers on VLAN 22. What interface and in what direction should you place a standard ACL that allows printing to P1 from data VLAN 10, but stops the PCs on VLAN 20 from using the P1 printer? (Choose two.)
Respuesta
-
R1 Gi0/1.12
-
R1 S0/0/0
-
R2 S0/0/1
-
R2 Gi0/1.20
-
inbound
-
outbound
Pregunta 17
Pregunta
Which two packet filters could a network administrator use on an IPv4 extended ACL? (Choose two.)
Pregunta 18
Pregunta
A network administrator is explaining to a junior colleague the use of the lt and gt keywords when filtering packets using an extended ACL. Where would the lt or gt keywords be used?
Respuesta
-
in an IPv6 extended ACL that stops packets going to one specific destination VLAN
-
in an IPv4 named standard ACL that has specific UDP protocols that are allowed to be used on a specific server
-
in an IPv6 named ACL that permits FTP traffic from one particular LAN getting to another LAN
-
in an IPv4 extended ACL that allows packets from a range of TCP ports destined for a specific network device
Pregunta 19
Pregunta
Which three values or sets of values are included when creating an extended access control list entry? (Choose three.)
Respuesta
-
access list number between 1 and 99
-
access list number between 100 and 199
-
default gateway address and wildcard mask
-
destination address and wildcard mask
-
source address and wildcard mask
-
source subnet mask and wildcard mask
-
destination subnet mask and wildcard mask
Pregunta 20
Pregunta
A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry?
Pregunta 21
Pregunta
The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.)
Pregunta 22
Pregunta
A network administrator is adding ACLs to a new IPv6 multirouter environment. Which IPv6 ACE is automatically added implicitly at the end of an ACL so that two adjacent routers can discover each other?
Pregunta 23
Pregunta
Which statement describes a route that has been learned dynamically?
Respuesta
-
It is automatically updated and maintained by routing protocols.
-
It is unaffected by changes in the topology of the network.
-
It has an administrative distance of 1.
-
It is identified by the prefix C in the routing table.
Pregunta 24
Pregunta
Refer to the exhibit. How did the router obtain the last route that is shown?
Respuesta
-
The ip route command was used.
-
The ipv6 route command was used.
-
Another router in the same organization provided the default route by using a dynamic routing protocol.
-
The ip address interface configuration mode command was used in addition to the network routing protocol configuration mode command.
Pregunta 25
Pregunta
Which statement is correct about IPv6 routing?
Respuesta
-
IPv6 routing is enabled by default on Cisco routers.
-
IPv6 only supports the OSPF and EIGRP routing protocols.
-
IPv6 routes appear in the same routing table as IPv4 routes.
-
IPv6 uses the link-local address of neighbors as the next-hop address for dynamic routes.
Pregunta 26
Pregunta
Refer to the exhibit. Which type of route is 172.16.0.0/16?
Respuesta
-
child route
-
ultimate route
-
default route
-
level 1 parent route
Pregunta 27
Pregunta
Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.)
Pregunta 28
Pregunta
28. Refer to the exhibit. Which type of IPv6 static route is configured in the exhibit?
Pregunta 29
Pregunta
A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network?
Respuesta
-
ip route 172.16.0.0 255.255.240.0 S0/0/0 200
-
ip route 172.16.32.0 255.255.224.0 S0/0/0 200
-
ip route 172.16.0.0 255.255.224.0 S0/0/0 100
-
ip route 172.16.32.0 255.255.0.0 S0/0/0 100
Pregunta 30
Pregunta
Which summary IPv6 static route statement can be configured to summarize only the routes to networks 2001:db8:cafe::/58 through 2001:db8:cafe:c0::/58?
Respuesta
-
ipv6 route 2001:db8:cafe::/62 S0/0/0
-
ipv6 route 2001:db8:cafe::/54 S0/0/0
-
ipv6 route 2001:db8:cafe::/56 S0/0/0
-
ipv6 route 2001:db8:cafe::/60 S0/0/0
Pregunta 31
Pregunta
Refer to the exhibit. If RIPng is enabled, how many hops away does R1 consider the 2001:0DB8:ACAD:1::/64 network to be?
Pregunta 32
Pregunta
Which statement is true about the difference between OSPFv2 and OSPFv3?
Respuesta
-
OSPFv3 routers use a different metric than OSPFv2 routers use.
-
OSPFv3 routers use a 128 bit router ID instead of a 32 bit ID.
-
OSPFv3 routers do not need to elect a DR on multiaccess segments.
-
OSPFv3 routers do not need to have matching subnets to form neighbor adjacencies.
Pregunta 33
Pregunta
What happens immediately after two OSPF routers have exchanged hello packets and have formed a neighbor adjacency?
Respuesta
-
They exchange DBD packets in order to advertise parameters such as hello and dead intervals.
-
They negotiate the election process if they are on a multiaccess network.
-
They request more information about their databases.
-
They exchange abbreviated lists of their LSDBs.
Pregunta 34
Pregunta
What does the cost of an OSPF link indicate?
Respuesta
-
A higher cost for an OSPF link indicates a faster path to the destination.
-
Link cost indicates a proportion of the accumulated value of the route to the destination.
-
Cost equals bandwidth.
-
A lower cost indicates a better path to the destination than a higher cost does.
Pregunta 35
Pregunta
Which three pieces of information does a link-state routing protocol use initially as link-state information for locally connected links? (Choose three.)
Pregunta 36
Pregunta
Which three requirements are necessary for two OSPFv2 routers to form an adjacency? (Choose three.)
Respuesta
-
The two routers must include the inter-router link network in an OSPFv2 network command.
-
The OSPFv2 process is enabled on the interface by entering the ospf process area-id command.
-
The OSPF hello or dead timers on each router must match.
-
The OSPFv2 process ID must be the same on each router.
-
The link interface subnet masks must match.
-
The link interface on each router must be configured with a link-local address.
Pregunta 37
Pregunta
A router needs to be configured to route within OSPF area 0. Which two commands are required to accomplish this? (Choose two.)
Respuesta
-
RouterA(config)# router ospf 0
-
RouterA(config)# router ospf 1
-
RouterA(config-router)# network 192.168.2.0 0.0.0.255 0
-
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
-
RouterA(config-router)# network 192.168.2.0 255.255.255.0 0
Pregunta 38
Pregunta
What are two features of a link-state routing protocol? (Choose two.)
Respuesta
-
Routers send periodic updates only to neighboring routers.
-
Routers send triggered updates in response to a change.
-
Routers create a topology of the network by using information from other routers.
-
The database information for each router is obtained from the same source.
-
Paths are chosen based on the lowest number of hops to the designated router.
Pregunta 39
Pregunta
Why would an administrator use a network security auditing tool to flood the switch MAC address table with fictitious MAC addresses?
Respuesta
-
to determine which ports are not correctly configured to prevent MAC address flooding
-
to determine when the CAM table size needs to be increased in order to prevent overflows
-
to determine if the switch is forwarding the broadcast traffic correctly
-
to determine which ports are functioning
Pregunta 40
Pregunta
Two employees in the Sales department work different shifts with their laptop computers and share the same Ethernet port in the office. Which set of commands would allow only these two laptops to use the Ethernet port and create violation log entry without shutting down the port if a violation occurs?
Respuesta
-
switchport mode access
switchport port-security
-
switchport mode access
switchport port-security
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport port-security violation restrict
-
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
-
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport port-security violation protect
Pregunta 41
Pregunta
Which problem is evident if the show ip interface command shows that the interface is down and the line protocol is down?
Respuesta
-
An encapsulation mismatch has occurred.
-
A cable has not been attached to the port.
-
The no shutdown command has not been issued on the interface.
-
There is an IP address conflict with the configured address on the interface.
Pregunta 42
Pregunta
What caused the following error message to appear?
01:11:12: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/8, putting Fa0/8 in err-disable state
01:11:12: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0011.a0d4.12a0 on port FastEthernet0/8.
01:11:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to down
01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down
Respuesta
-
Another switch was connected to this switch port with the wrong cable.
-
An unauthorized user tried to telnet to the switch through switch port Fa0/8.
-
NAT was enabled on a router, and a private IP address arrived on switch port Fa0/8.
-
A host with an invalid IP address was connected to a switch port that was previously unused.
-
Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.
Pregunta 43
Pregunta
While analyzing log files, a network administrator notices reoccurring native VLAN mismatches. What is the effect of these reoccurring errors?
Respuesta
-
All traffic on the error-occurring trunk port is being misdirected or dropped.
-
The control and management traffic on the error-occurring trunk port is being misdirected or dropped.
-
All traffic on the error-occurring trunk port is being switched correctly regardless of the error.
-
Unexpected traffic on the error-occurring trunk port is being received.
Pregunta 44
Pregunta
Which three pairs of trunking modes will establish a functional trunk link between two Cisco switches? (Choose three.)
Respuesta
-
dynamic desirable – dynamic desirable
-
dynamic auto – dynamic auto
-
dynamic desirable – dynamic auto
-
dynamic desirable – trunk
-
access – trunk
-
access – dynamic auto
Pregunta 45
Pregunta
What are two ways of turning off DTP on a trunk link between switches? (Choose two.)
Respuesta
-
Change the native VLAN on both ports.
-
Configure attached switch ports with the dynamic desirable command option.
-
Configure attached switch ports with the nonegotiate command option.
-
Configure one port with the dynamic auto command option and the opposite attached switch port with the dynamic desirable command option.
-
Place the two attached switch ports in access mode.
Pregunta 46
Pregunta
A network administrator is using the router-on-a-stick method to configure inter-VLAN routing. Switch port Gi1/1 is used to connect to the router. Which command should be entered to prepare this port for the task?
Respuesta
-
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree vlan 1
-
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree portfast
-
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport mode trunk
-
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport access vlan 1
Pregunta 47
Pregunta
Which two characteristics describe the native VLAN? (Choose two.)
Respuesta
-
Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
-
The native VLAN traffic will be untagged across the trunk link.
-
This VLAN is necessary for remote management of a switch.
-
High priority traffic, such as voice traffic, uses the native VLAN.
-
The native VLAN provides a common identifier to both ends of a trunk.
Pregunta 48
Pregunta
On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?
Respuesta
-
Switch# delete flash:vlan.dat
-
Switch(config-if)# no switchport access vlan 100
-
Switch(config-if)# no switchport trunk allowed vlan 100
-
Switch(config)# no vlan 100
Pregunta 49
Pregunta
What is the purpose of setting the native VLAN separate from data VLANs?
Respuesta
-
The native VLAN is for carrying VLAN management traffic only.
-
The security of management frames that are carried in the native VLAN can be enhanced.
-
A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs.
-
The native VLAN is for routers and switches to exchange their management information, so it should be different from data VLANs.
Pregunta 50
Pregunta
A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?
Respuesta
-
All devices in all VLANs see the frame.
-
Devices in VLAN 20 and the management VLAN see the frame.
-
Only devices in VLAN 20 see the frame.
-
Only devices that are connected to the local switch see the frame.
Pregunta 51
Pregunta
Refer to the exhibit. The partial configuration that is shown was used to configure router on a stick for VLANS 10, 30, and 50. However, testing shows that there are some connectivity problems between the VLANs. Which configuration error is causing this problem?
Respuesta
-
A configuration for the native VLAN is missing.
-
There is no IP address configured for the FastEthernet 0/0 interface.
-
The wrong VLAN has been configured on subinterface Fa0/0.50.
-
The VLAN IP addresses should belong to the same subnet.
Pregunta 52
Pregunta
What is the purpose of an access list that is created as part of configuring IP address translation?
Respuesta
-
The access list defines the valid public addresses for the NAT or PAT pool.
-
The access list defines the private IP addresses that are to be translated.
-
The access list prevents external devices from being a part of the address translation.
-
The access list permits or denies specific addresses from entering the device doing the translation.
Pregunta 53
Pregunta
Which command will create a static route on R2 in order to reach PC B?
Respuesta
-
R2(config)# ip route 172.16.2.1 255.255.255.0 172.16.3.1
-
R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.2.254
-
R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1
-
R2(config)# ip route 172.16.3.0 255.255.255.0 172.16.2.254
Pregunta 54
Pregunta
Match the order in which the link-state routing process occurs on a router. (Not all options are used.)
Respuesta
-
Step 1 – Each router learns about its own directly connected networks.
-
Step 2 – Each router is responsible for “saying hello” to its neighbors on directly connected networks.
-
Step 3 – Each router builds a Link-State Packet (LSP) containing the state of each directly connected link
-
Step 4 – Each router floods the LSP to all neighbors, who then store all LSPs received in a database
-
Step 5 – Each router uses the database to construct a complete map of the topology and computes the best
Pregunta 55
Pregunta
Which information does a switch use to populate the MAC address table?
Respuesta
-
the destination MAC address and the incoming port
-
the destination MAC address and the outgoing port
-
the source and destination MAC addresses and the incoming port
-
the source and destination MAC addresses and the outgoing port
-
the source MAC address and the incoming port
-
the source MAC address and the outgoing port
Pregunta 56
Pregunta
Refer to the exhibit. How many broadcast and collision domains exist in the topology?
Respuesta
-
10 broadcast domains and 5 collision domains
-
5 broadcast domains and 10 collision domains
-
5 broadcast domains and 11 collision domains
-
16 broadcast domains and 11 collision domains
Pregunta 57
Pregunta
What is a function of the distribution layer?
Respuesta
-
fault isolation
-
network access to the user
-
high-speed backbone connectivity
-
interconnection of large-scale networks in wiring closets
Pregunta 58
Pregunta
Which switching method drops frames that fail the FCS check?
Pregunta 59
Pregunta
In IPv6, all routes are level [blank_start]1[blank_end] ultimate routes.
Pregunta 60
Pregunta
Static routes are configured by the use of the [blank_start]ip route[blank_end] global configuration command.
Pregunta 61
Pregunta
The OSPF Type 1 packet is the [blank_start]Hello[blank_end] packet.
Pregunta 62
Pregunta
The default administrative distance for a static route is [blank_start]1[blank_end].
Pregunta 63
Pregunta
When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default?
Respuesta
-
data VLAN ID
-
native VLAN ID
-
unused VLAN ID
-
management VLAN ID
Pregunta 64
Pregunta
Refer to the exhibit. A Layer 3 switch routes for three VLANs and connects to a router for Internet connectivity. Which two configurations would be applied to the switch? (Choose two.)
Respuesta
-
(config)# interface gigabitethernet 1/1
(config-if)# no switchport
-
(config-if)# ip address 192.168.1.2 255.255.255.252
(config)# interface vlan 1
(config-if)# ip address 192.168.1.2 255.255.255.0
(config-if)# no shutdown
-
(config)# interface gigabitethernet1/1
(config-if)# switchport mode trunk
-
(config)# interface fastethernet0/4
(config-if)# switchport mode trunk
-
(config)# ip routing
Pregunta 65
Pregunta
Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224 255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach resources on the Internet. How should this static route be changed to allow user traffic from the LAN to reach the Internet?
Respuesta
-
Add an administrative distance of 254.
-
Change the destination network and mask to 0.0.0.0 0.0.0.0
-
Change the exit interface to S0/0/1.
-
Add the next-hop neighbor address of 209.165.200.226.
Pregunta 66
Pregunta
How is the router ID for an OSPFv3 router determined?
Respuesta
-
the highest IPv6 address on an active interface
-
the highest EUI-64 ID on an active interface
-
the highest IPv4 address on an active interface
-
the lowest MAC address on an active interface
Pregunta 67
Pregunta
Which two statements are characteristics of routed ports on a multilayer switch? (Choose two.)
Respuesta
-
In a switched network, they are mostly configured between switches at the core and distribution layers.
-
They support subinterfaces, like interfaces on the Cisco IOS routers.
-
The interface vlan command has to be entered to create a VLAN on routed ports.
-
They are used for point-to-multipoint links.
-
They are not associated with a particular VLAN.
Pregunta 68
Pregunta
Match the switching characteristic to the correct term. (Not all options are used.)
Respuesta
-
I remember this.
-
I don't remember this.
Pregunta 69
Pregunta
A small-sized company has 20 workstations and 2 servers. The company has been assigned a group of IPv4 addresses 209.165.200.224/29 from its ISP. What technology should the company implement in order to allow the workstations to access the services over the Internet?
Respuesta
-
static NAT
-
dynamic NAT
-
port address translation
-
DHCP
Pregunta 70
Pregunta
What best describes the operation of distance vector routing protocols?
Respuesta
-
They use hop count as their only metric.
-
They send their routing tables to directly connected neighbors.
-
They flood the entire network with routing updates.
-
They only send out updates when a new network is added.
Pregunta 71
Pregunta
Which three advantages are provided by static routing? (Choose three.)
Respuesta
-
The path a static route uses to send data is known.
-
No intervention is required to maintain changing route information.
-
Static routing does not advertise over the network, thus providing better security.
-
Static routing typically uses less network bandwidth and fewer CPU operations than dynamic routing does.
-
Configuration of static routes is error-free. Static routes scale well as the network grows.
Pregunta 72
Pregunta
When configuring a switch to use SSH for virtual terminal connections, what is the purpose of the crypto key generate rsa command?
Respuesta
-
show active SSH ports on the switch
-
disconnect SSH connected hosts
-
create a public and private key pair
-
show SSH connected hosts
-
access the SSH database configuration
Pregunta 73
Pregunta
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What is the problem preventing PC0 and PC1 from communicating with PC2 and PC3?
Respuesta
-
The routers are using different OSPF process IDs.
-
The serial interfaces of the routers are in different subnets.
-
No router ID has been configured on the routers.
-
The gigabit interfaces are passive.
Pregunta 74
Pregunta
Which two commands can be used to verify the content and placement of access control lists? (Choose two.)
Pregunta 75
Pregunta
Refer to the exhibit. What summary static address would be configured on R1 to advertise to R3?
Respuesta
-
192.168.0.0/24
-
192.168.0.0/23
-
192.168.0.0/22
-
192.168.0.0/21
Pregunta 76
Pregunta
A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements?
Respuesta
-
auto secure MAC addresses
-
dynamic secure MAC addresses
-
static secure MAC addresses
-
sticky secure MAC addresses
Pregunta 77
Pregunta
Which value represents the “trustworthiness” of a route and is used to determine which route to install into the routing table when there are multiple routes toward the same destination?
Respuesta
-
routing protocol
-
outgoing interface
-
metric
-
administrative distance
Pregunta 78
Pregunta
Which type of router memory temporarily stores the running configuration file and ARP table?
Pregunta 79
Pregunta
Refer to the exhibit. If the switch reboots and all routers have to re-establish OSPF adjacencies, which routers will become the new DR and BDR?
Respuesta
-
Router R3 will become the DR and router R1 will become the BDR.
-
Router R1 will become the DR and router R2 will become the BDR.
-
Router R4 will become the DR and router R3 will become the BDR.
-
Router R2 will become the DR and router R2 will become the BDR.
Pregunta 80
Pregunta
Refer to the exhibit. The Branch Router has an OSPF neighbor relationship with the HQ router over the 198.51.0.4/30 network. The 198.51.0.8/30 network link should serve as a backup when the OSPF link goes down. The floating static route command ip route 0.0.0.0 0.0.0.0 S0/1/1 100 was issued on Branch and now traffic is using the backup link even when the OSPF link is up and functioning. Which change should be made to the static route command so that traffic will only use the OSPF link when it is up?
Respuesta
-
Add the next hop neighbor address of 198.51.0.8.
-
Change the administrative distance to 1.
-
Change the destination network to 198.51.0.5.
-
Change the administrative distance to 120.
Pregunta 81
Pregunta
Refer to the exhibit. An attacker on PC X sends a frame with two 802.1Q tags on it, one for VLAN 40 and another for VLAN 12. What will happen to this frame?
Respuesta
-
SW-A will drop the frame because it is invalid.
-
SW-A will leave both tags on the frame and send it to SW-B, which will forward it to hosts on VLAN 40.
-
SW-A will remove both tags and forward the rest of the frame across the trunk link, where SW-B will forward the frame to hosts on VLAN 40.
-
SW-A will remove the outer tag and send the rest of the frame across the trunk link, where SW-B will forward the frame to hosts on VLAN 12.
Pregunta 82
Pregunta
A new network policy requires an ACL to deny HTTP access from all guests to a web server at the main office. All guests use addressing from the IPv6 subnet 2001:DB8:19:C::/64. The web server is configured with the address 2001:DB8:19:A::105/64. Implementing the NoWeb ACL on the interface for the guest LAN requires which three commands? (Choose three.)
Respuesta
-
permit tcp any host 2001:DB8:19:A::105 eq 80 deny tcp host 2001:DB8:19:A::105 any eq 80
-
deny tcp any host 2001:DB8:19:A::105 eq 80
-
permit ipv6 any any
-
deny ipv6 any any
-
ipv6 traffic-filter NoWeb in
-
ip access-group NoWeb in
Pregunta 83
Pregunta
An OSPF router has three directly connected networks; 172.16.0.0/16, 172.16.1.0/16, and 172.16.2.0/16. Which OSPF network command would advertise only the 172.16.1.0 network to neighbors?
Respuesta
-
router(config-router)# network 172.16.1.0 0.0.255.255 area 0
-
router(config-router)# network 172.16.0.0 0.0.15.255 area 0
-
router(config-router)# network 172.16.1.0 255.255.255.0 area 0
-
router(config-router)# network 172.16.1.0 0.0.0.0 area 0
Pregunta 84
Pregunta
Which subnet mask would be used as the classful mask for the IP address 192.135.250.27?
Respuesta
-
255.0.0.0
-
255.255.0.0
-
255.255.255.0
-
255.255.255.224
Pregunta 85
Pregunta
Refer to the exhibit. A small business uses VLANs 8, 20, 25, and 30 on two switches that have a trunk link between them. What native VLAN should be used on the trunk if Cisco best practices are being implemented?
Pregunta 86
Pregunta
The buffers for packet processing and the running configuration file are temporarily stored in which type of router memory?
Pregunta 87
Pregunta
A network technician is configuring port security on switches. The interfaces on the switches are configured in such a way that when a violation occurs, packets with unknown source address are dropped and no notification is sent. Which violation mode is configured on the interfaces?
Respuesta
-
off
-
restrict
-
protect
-
shutdown
Pregunta 88
Pregunta
A standard ACL has been configured on a router to allow only clients from the 10.11.110.0/24 network to telnet or to ssh to the VTY lines of the router. Which command will correctly apply this ACL?
Respuesta
-
access-group 11 in
-
access-class 11 in
-
access-list 11 in
-
access-list 110 in
Pregunta 89
Pregunta
Refer to the exhibit.What address will summarize the LANs attached to routers 2-A and 3-A and can be configured in a summary static route to advertise them to an upstream neighbor?
Respuesta
-
10.0.0.0/24
-
10.0.0.0/23
-
10.0.0.0/22
-
10.0.0.0/21
Pregunta 90
Pregunta
A security specialist designs an ACL to deny access to a web server from all sales staff. The sales staff are assigned addressing from the IPv6 subnet 2001:db8:48:2c::/64. The web server is assigned the address 2001:db8:48:1c::50/64. Configuring the WebFilter ACL on the LAN interface for the sales staff will require which three commands? (Choose three.)
Respuesta
-
deny tcp host 2001:db8:48:1c::50 any eq 80
-
deny tcp any host 2001:db8:48:1c::50 eq 80
-
permit ipv6 any any
-
deny ipv6 any any
-
ip access-group WebFilter in
-
ipv6 traffic-filter WebFilter in
Pregunta 91
Pregunta
To enable RIP routing for a specific subnet, the configuration command network 192.168.5.64 was entered by the network administrator. What address, if any, appears in the running configuration file to identify this network?
Respuesta
-
192.168.5.64
-
192.168.5.0
-
192.168.0.0
-
No address is displayed.
Pregunta 92
Pregunta
Refer to the exhibit. An ACL preventing FTP and HTTP access to the interval web server from all teaching assistants has been implemented in the Board Office. The address of the web server is 172.20.1.100 and all teaching assistants are assigned addresses in the 172.21.1.0/24 network. After implement the ACL, access to all servers is denied. What is the problem?
Respuesta
-
inbound ACLs must be routed before they are processed
-
the ACL is implicitly denying access to all the servers
-
named ACLs requite the use of port numbers
-
the ACL is applied to the interface using the wrong direction
Pregunta 93
Pregunta
Refer to the exhibit. Assuming that the routing tables are up to date and no ARP messages are needed, after a packet leaves H1, how many times is the L2 header rewritten in the path to H2?
Pregunta 94
Pregunta
A router learns of multiple toward the same destination. Which value in a routing table represents the trustworthiness of learned routes and is used by the router to determine which route to install into the routing table for specific situation?
Respuesta
-
Metric
-
Colour
-
Meter
-
Bread
Pregunta 95
Pregunta
What is the minimum configuration for a router interface that is participating in IPv6 routing?
Pregunta 96
Pregunta
Which two statements are true about half-duplex and full-duplex communications? (Choose two.)
Respuesta
-
Full duplex offers 100 percent potential use of the bandwidth.
-
Half duplex has only one channel.
-
All modern NICs support both half-duplex and full-duplex communication.
-
Full duplex allows both ends to transmit and receive simultaneously.
-
Full duplex increases the effective bandwidth.
Pregunta 97
Pregunta
Fill in the blank. The acronym describes the type of traffic that has strict QoS requirements and utilizes a one-way overall delay less than 150 ms across the network.
Pregunta 98
Pregunta
Which two commands should be implemented to return a Cisco 3560 trunk port to its default configuration? (Choose two.)
Respuesta
-
S1(config-if)# no switchport trunk allowed vlan
-
S1(config-if)# no switchport trunk native vlan
-
S1(config-if)# switchport mode dynamic desirable
-
S1(config-if)# switchport mode access
-
S1(config-if)# switchport access vlan 1
Pregunta 99
Pregunta
Which command will enable auto-MDIX on a device?
Pregunta 100
Pregunta
What is the effect of issuing the passive-interface default command on a router that is configured for OSPF?
Pregunta 101
Pregunta
A network administrator is implementing a distance vector routing protocol between neighbors on the network. In the context of distance vector protocols, what is a neighbor?
Respuesta
-
routers that are reachable over a TCP session
-
routers that share a link and use the same routing protocol
-
routers that reside in the same area
-
routers that exchange LSAs
Pregunta 102
Pregunta
Refer to the exhibit. A network administrator has just configured address translation and is verifying the configuration. What three things can the administrator verify? (Choose three.)
Respuesta
-
Address translation is working.
-
Three addresses from the NAT pool are being used by hosts.
-
The name of the NAT pool is refCount.
-
A standard access list numbered 1 was used as part of the configuration process.
-
Two types of NAT are enabled.
-
One port on the router is not participating in the address translation.
Pregunta 103
Pregunta
Match the router memory type that provides the primary storage for the router feature. (Not all options are used.)
Respuesta
-
console access –> Not Scored
-
full operating system –> flash
-
limited operating system –> ROM
-
routing table –> RAM
-
startup configuration file –> NVRAM
Pregunta 104
Pregunta
Which two methods can be used to provide secure management access to a Cisco switch? (Choose two.)
Respuesta
-
Configure all switch ports to a new VLAN that is not VLAN 1.
-
Configure specific ports for management traffic on a specific VLAN.
-
Configure SSH for remote management.
-
Configure all unused ports to a “black hole.”
-
Configure the native VLAN to match the default VLAN.
Pregunta 105
Pregunta
Refer to the exhibit. Which highlighted value represents a specific destination network in the routing table?
Respuesta
-
0.0.0.0
-
10.16.100.128
-
10.16.100.2
-
110
-
791
Pregunta 106
Pregunta
Refer to the exhibit. Host A has sent a packet to host B. What will be the source MAC and IP addresses on the packet when it arrives at host B?
Respuesta
-
Source MAC: 00E0.FE10.17A3
Source IP: 10.1.1.10
-
Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.1
-
Source MAC: 00E0.FE91.7799
Source IP: 192.168.1.1
-
Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.10
-
Source MAC: 00E0.FE10.17A3 Source IP: 192.168.1.1
Pregunta 107
Pregunta
Which network design may be recommended for a small campus site that consists of a single building with a few users?
Respuesta
-
a network design where the access and distribution layers are collapsed into a single layer
-
a network design where the access and core layers are collapsed into a single layer
-
a collapsed core network design
-
a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions
Pregunta 108
Pregunta
Refer to the exhibit. A small business uses VLANs 2, 3, 4, and 5 between two switches that have a trunk link between them. What native VLAN should be used on the trunk if Cisco best practices are being implemented?
Pregunta 109
Pregunta
A router learns of multiple routes toward the same destination. Which value in a routing table represents the trustworthiness of learned routes and is used by the router to determine which route to install into the routing table for this specific situation?
Respuesta
-
routing protocol
-
outgoing interface
-
metric
-
administrative distance
Pregunta 110
Pregunta
Which value in a routing table represents trustworthiness and is used by the router to determine which route to install into the routing table when there are multiple routes toward the same destination?
Respuesta
-
administrative distance
-
metric
-
outgoing interface
-
routing protocol
Pregunta 111
Pregunta
The network address 172.18.9.128 with netmask 255.255.255.128 is matched by which wildcard mask?
Respuesta
-
0.0.0.31
-
0.0.0.255
-
0.0.0.127
-
0.0.0.63
Pregunta 112
Pregunta
Which three addresses could be used as the destination address for OSPFv3 messages? (Choose three.)
Respuesta
-
FF02::5
-
FF02::6
-
FF02::A
-
2001:db8:cafe::1
-
FF02::1:2
-
FE80::1
Pregunta 113
Pregunta
Refer to the exhibit. What is the OSPF cost to reach the West LAN 172.16.2.0/24 from East?
Pregunta 114
Pregunta
Refer to the exhibit. What is the OSPF cost to reach the R2 LAN 172.16.2.0/24 from R1?
Pregunta 115
Pregunta
A network administrator is configuring port security on a Cisco switch. The company security policy specifies that when a violation occurs, packets with unknown source addresses should be dropped and no notification should be sent. Which violation mode should be configured on the interfaces?
Respuesta
-
off
-
restrict
-
protect
-
shutdown
Pregunta 116
Pregunta
A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address matches the ACE?
Respuesta
-
172.16.20.2
-
172.16.26.254
-
172.16.47.254
-
172.16.48.5
Pregunta 117
Pregunta
What are two reasons that will prevent two routers from forming an OSPFv2 adjacency? (Choose two.)
Respuesta
-
mismatched subnet masks on the link interfaces
-
a mismatched Cisco IOS version that is used
-
use of private IP addresses on the link interfaces
-
one router connecting to a FastEthernet port on the switch and the other connecting to a GigabitEthernet port
-
mismatched OSPF Hello or Dead timers
Pregunta 118
Pregunta
Refer to the exhibit. The network administrator needs as many switch ports as possible for end devices and the business is using the most common type of inter-VLAN method. What type of inter-VLAN interconnectivity is best to use between the switch and the router if R1 routes for all VLANs?
Respuesta
-
one link between the switch and the router with the router using three router subinterfaces
-
one link between the switch and the router with the one switch port being configured in access mode
-
three links between the switch and the router with the three switch ports being configured in access mode
-
two links between the switch and the router with the two switch ports being configured in access mode
Pregunta 119
Pregunta
Router R1 routes traffic to the 10.10.0.0/16 network using an EIGRP learned route from Branch2. The administrator would like to install a floating static route to create a backup route to the 10.10.0.0/16 network in the event that the link between R1 and Branch2 goes down. Which static route meets this goal?
Respuesta
-
ip route 10.10.0.0 255.255.0.0 209.165.200.225 100
-
ip route 255.255.0.0 10.10.0.0 209.165.200.225
-
ip route 255.255.0.0 10.10.0.0 209.165.200.225 100
-
ip route 10.10.0.0 255.255.0.0 209.165.200.225
Pregunta 120
Pregunta
Which highlighted value represents a specific destination network in the routing table?
Respuesta
-
172.16.100.64
-
255.255.255.0