Quiz
Router and Routing Basics Exam Ch 9, 10, 11
Perguntas do quiz (65)
1Which three statements are generally considered to be best practices in the placement of ACLs? (Choose three.)
- AFilter unwanted traffic before it travels onto a low-bandwidth link.
- BPlace extended ACLs close to the destination IP address of the traffic.
- CPlace standard ACLs close to the source IP address of the traffic.
- DPlace extended ACLs close to the source IP address of the traffic
- EPlace standard ACLs close to the destination IP address of the traffic.
- FFor every inbound ACL placed on an interface, there should be a matching outbound ACL.
2What two functions describe uses of an access control list? (Choose two.)
- AACLs can permit or deny traffic based upon the MAC address originating on the router.
- BACLs provide a basic level of security for network access.
- CACLs assist the router in determining the best path to a destination.
- DACLs can control which areas a host can access on a network.
- EStandard ACLs can restrict access to specific applications and ports.
3An administrator has configured an access list on R1 to allow SSH administrative access from host 172.16.1.100. Which command correctly applies the ACL?
- AR1(config-line)# access-class 1 out
- BR1(config-if)# ip access-group 1 out
- CR1(config-if)# ip access-group 1 in
- DR1(config-line)# access-class 1 in
4Refer to the exhibit. What is the result of adding the established argument to the end of the ACE?
- AAny IP traffic is allowed to reach the 192.168.254.0 255.255.254.0 network as long as it is in response to an originated request.
- BAny traffic is allowed to reach the 192.168.254.0 255.255.254.0 network.
- C192.168.254.0 /23 traffic is allowed to reach any network.
- DAny TCP traffic is allowed to reach the 192.168.254.0 255.255.254.0 network if it is in response to an originated request.
5Refer to the exhibit. What will happen to the access list 10 ACEs if the router is rebooted before any other commands are implemented?
- AThe ACEs of access list 10 will be deleted.
- BThe ACEs of access list 10 wildcard masks will be converted to subnet masks.
- CThe ACEs of access list 10 will not be affected.
- DThe ACEs of access list 10 will be renumbered.
6Which three statements describe ACL processing of packets? (Choose three.)
- AA packet that does not match the conditions of any ACE will be forwarded by default.
- BEach statement is checked only until a match is detected or until the end of the ACE list.
- CA packet can either be rejected or forwarded as directed by the ACE that is matched.
- DA packet that has been denied by one ACE can be permitted by a subsequent ACE.
- EEach packet is compared to the conditions of every ACE in the ACL before a forwarding decision is made.
- FAn implicit deny any rejects any packet that does not match any ACE.
7In which configuration would an outbound ACL placement be preferred over an inbound ACL placement?
- Awhen the ACL is applied to an outbound interface to filter packets coming from multiple inbound interfaces before the packets exit the interface
- Bwhen a router has more than one ACL
- Cwhen an outbound ACL is closer to the source of the traffic flow
- Dwhen an interface is filtered by an outbound ACL and the network attached to the interface is the source network being filtered within the ACL
8Refer to the exhibit. A router has an existing ACL that permits all traffic from the 172.16.0.0 network. The administrator attempts to add a new ACE to the ACL that denies packets from host 172.16.0.1 and receives the error message that is shown in the exhibit. What action can the administrator take to block packets from host 172.16.0.1 while still permitting all other traffic from the 172.16.0.0 network?
- AAdd a deny any any ACE to access-list 1.
- BCreate a second access list denying the host and apply it to the same interface.
- CManually add the new deny ACE with a sequence number of 5.
- DManually add the new deny ACE with a sequence number of 15.
9What packets would match the access control list statement that is shown below?
access-list 110 permit tcp 172.16.0.0 0.0.0.255 any eq 22- Aany TCP traffic from any host to the 172.16.0.0 network
- BSSH traffic from the 172.16.0.0 network to any destination network
- Cany TCP traffic from the 172.16.0.0 network to any destination network
- DSSH traffic from any source network to the 172.16.0.0 network
10If a router has two interfaces and is routing both IPv4 and IPv6 traffic, how many ACLs could be created and applied to it?
- A12
- B4
- C8
- D16
- E6
11Which feature is unique to IPv6 ACLs when compared to those of IPv4 ACLs?
- Athe use of wildcard masks
- Ban implicit deny any any ACE
- Can implicit permit of neighbor discovery packets
- Dthe use of named ACL entries
12Consider the following access list that allows IP phone configuration file transfers from a particular host to a TFTP server:
R1(config)# access-list 105 permit udp host 10.0.70.23 host 10.0.54.5 range 1024 5000
R1(config)# access-list 105 deny ip any any
R1(config)# interface gi0/0
R1(config-if)# ip access-group 105 out
Which method would allow the network administrator to modify the ACL and include FTP transfers from any source IP address?- AR1(config)# access-list 105 permit udp host 10.0.70.23 host 10.0.54.5 range 1024 5000
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 20
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 21
R1(config)# access-list 105 deny ip any any - BR1(config)# interface gi0/0
R1(config-if)# no ip access-group 105 out
R1(config)# no access-list 105
R1(config)# access-list 105 permit udp host 10.0.70.23 host 10.0.54.5 range 1024 5000
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 20
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 21
R1(config)# access-list 105 deny ip any any
R1(config)# interface gi0/0
R1(config-if)# ip access-group 105 out - CR1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 20
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 21 - DR1(config)# interface gi0/0
R1(config-if)# no ip access-group 105 out
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 20
R1(config)# access-list 105 permit tcp any host 10.0.54.5 eq 21
R1(config)# interface gi0/0
R1(config-if)# ip access-group 105 out
- AR1(config)# access-list 105 permit udp host 10.0.70.23 host 10.0.54.5 range 1024 5000
13Which IPv6 ACL command entry will permit traffic from any host to an SMTP server on network 2001:DB8:10:10::/64?
- Apermit tcp host 2001:DB8:10:10::100 any eq 25
- Bpermit tcp any host 2001:DB8:10:10::100 eq 25
- Cpermit tcp any host 2001:DB8:10:10::100 eq 23
- Dpermit tcp host 2001:DB8:10:10::100 any eq 23
14What is the only type of ACL available for IPv6?
- Anumbered standard
- Bnumbered extended
- Cnamed standard
- Dnamed extended
15What method is used to apply an IPv6 ACL to a router interface?
- Athe use of the ipv6 access-list command
- Bthe use of the ip access-group command
- Cthe use of the ipv6 traffic-filter command
- Dthe use of the access-class command
16A network administrator needs to configure a standard ACL so that only the workstation of the administrator with the IP address 192.168.15.23 can access the virtual terminal of the main router. Which two configuration commands can achieve the task? (Choose two.)
- ARouter1(config)# access-list 10 permit 192.168.15.23 0.0.0.255
- BRouter1(config)# access-list 10 permit 192.168.15.23 255.255.255.255
- CRouter1(config)# access-list 10 permit host 192.168.15.23
- DRouter1(config)# access-list 10 permit 192.168.15.23 255.255.255.0
- ERouter1(config)# access-list 10 permit 192.168.15.23 0.0.0.0
17Which statement describes a difference between the operation of inbound and outbound ACLs?
- AOn a network interface, more than one inbound ACL can be configured but only one outbound ACL can be configured.
- BInbound ACLs are processed before the packets are routed while outbound ACLs are processed after the routing is completed.
- CIn contrast to outbound ALCs, inbound ACLs can be used to filter packets with multiple criteria.
- DInbound ACLs can be used in both routers and switches but outbound ACLs can be used only on routers.
18What single access list statement matches all of the following networks?
192.168.16.0
192.168.17.0
192.168.18.0
192.168.19.0- Aaccess-list 10 permit 192.168.16.0 0.0.15.255
- Baccess-list 10 permit 192.168.0.0 0.0.15.255
- Caccess-list 10 permit 192.168.16.0 0.0.3.255
- Daccess-list 10 permit 192.168.16.0 0.0.0.255
19Which three implicit access control entries are automatically added to the end of an IPv6 ACL? (Choose three.)
- Apermit ipv6 any any
- Bdeny ip any any
- Cpermit icmp any any nd-ns
- Ddeny ipv6 any any
- Edeny icmp any any
- Fpermit icmp any any nd-na
20What is a limitation when utilizing both IPv4 and IPv6 ACLs on a router?
- AIPv4 ACLs can be numbered or named whereas IPv6 ACLs must be numbered.
- BBoth IPv4 and IPv6 ACLs can be configured on a single device, but cannot share the same name.
- CA device can run only IPv4 ACLs or IPv6 ACLs.
- DIPv6 ACLs perform the same functions as standard IPv4 ACLs.
21Refer to the exhibit. The network administrator that has the IP address of 10.0.70.23/25 needs to have access to the corporate FTP server (10.0.54.5/28). The FTP server is also a web server that is accessible to all internal employees on networks within the 10.x.x.x address. No other traffic should be allowed to this server. Which extended ACL would be used to filter this traffic, and how would this ACL be applied? (Choose two.)
- Aaccess-list 105 permit tcp host 10.0.54.5 any eq www
access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 20
access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 21 - Baccess-list 105 permit ip host 10.0.70.23 host 10.0.54.5
access-list 105 permit tcp any host 10.0.54.5 eq www
access-list 105 permit ip any any - CR2(config)# interface gi0/0
R2(config-if)# ip access-group 105 in - DR1(config)# interface gi0/0
R1(config-if)# ip access-group 105 out - Eaccess-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 20
access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 21
access-list 105 permit tcp 10.0.0.0 0.255.255.255 host 10.0.54.5 eq www
access-list 105 deny ip any host 10.0.54.5
access-list 105 permit ip any any - FR1(config)# interface s0/0/0
R1(config-if)# ip access-group 105 out
- Aaccess-list 105 permit tcp host 10.0.54.5 any eq www
22Refer to the exhibit. The IPv6 access list LIMITED_ACCESS is applied on the S0/0/0 interface of R1 in the inbound direction. Which IPv6 packets from the ISP will be dropped by the ACL on R1?
- Aneighbor advertisements that are received from the ISP router
- BICMPv6 packets that are destined to PC1
- CHTTPS packets to PC1
- Dpackets that are destined to PC1 on port 80
23Which two characteristics are shared by both standard and extended ACLs? (Choose two.)
- ABoth can be created by using either a descriptive name or number.
- BBoth filter packets for a specific destination host IP address.
- CBoth include an implicit deny as a final entry
- DBoth kinds of ACLs can filter based on protocol type.
- EBoth can permit or deny specific services by port number.
24Refer to the exhibit. Based on the output that is shown, what kind of IPv6 addressing is being configured?
- Astatic link-local
- Bstateless DHCPv6
- Cstateful DHCPv6
- DSLAAC
25As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?
- ADHCPREQUEST
- BDHCPACK
- CDHCPOFFER
- DDHCPDISCOVER
26A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?
- AIt should contact a DHCPv6 server for the prefix, the prefix-length information, and an interface ID that is both random and unique.
- BIt should contact a DHCPv6 server for all the information that it needs.
- CIt should use the information that is contained in the RA message exclusively.
- DIt should use the information that is contained in the RA message and contact a DHCPv6 server for additional information.
27Refer to the exhibit. A network administrator is implementing the stateless DHCPv6 operation for the company. Clients are configuring IPv6 addresses as expected. However, the clients are not getting the DNS server address and the domain name information configured in the DHCP pool. What could be the cause of the problem?
- AThe GigabitEthernet interface is not activated.
- BThe clients cannot communicate with the DHCPv6 server, evidenced by the number of active clients being 0.
- CThe router is configured for SLAAC operation.
- DThe DNS server address is not on the same network as the clients are on.
28What is an advantage of configuring a Cisco router as a relay agent?
- AIt reduces the response time from a DHCP server.
- BIt can forward both broadcast and multicast messages on behalf of clients.
- CIt can provide relay services for multiple UDP services.
- DIt will allow DHCPDISCOVER messages to pass without alteration.
29Refer to the exhibit. What should be done to allow PC-A to receive an IPv6 address from the DHCPv6 server?
- AAdd the ipv6 dhcp relay command to interface Fa0/0.
- BConfigure the ipv6 nd managed-config-flag command on interface Fa0/1.
- CAdd the IPv6 address 2001:DB8:1234:5678::10/64 to the interface configuration of the DHCPv6 server
- DChange the ipv6 nd managed-config-flag command to ipv6 nd other-config-flag.
30Refer to the exhibit. A network administrator is implementing stateful DHCPv6 operation for the company. However, the clients are not using the prefix and prefix-length information that is configured in the DHCP pool. The administrator issues a show ipv6 interface command. What could be the cause of the problem?
- ANo virtual link-local address is configured
- BThe Duplicate Address Detection feature is disabled.
- CThe router is configured for SLAAC DHCPv6 operation
- DThe router is configured for stateless DHCPv6 operation
31Under which two circumstances would a router usually be configured as a DHCPv4 client? (Choose two.)
- AThis is an ISP requirement.
- BThe administrator needs the router to act as a relay agent.
- CThe router is intended to be used as a SOHO gateway.
- DThe router is meant to provide IP addresses to the hosts.
- EThe router has a fixed IP address.
32What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?
- Ato notify other hosts not to request the same IP address
- Bfor routers to fill their routing tables with this new information
- Cfor hosts on other subnets to receive the information
- Dto notify other DHCP servers on the subnet that the IP address was leased
33A company implements the stateless DHCPv6 method for configuring IPv6 addresses on employee workstations. After a workstation receives messages from multiple DHCPv6 servers to indicate their availability for DHCPv6 service, which message does it send to a server for configuration information?
- ADHCPv6 ADVERTISE
- BDHCPv6 INFORMATION-REQUEST
- CDHCPv6 SOLICIT
- DDHCPv6 REQUEST
34A network administrator is implementing DHCPv6 for the company. The administrator configures a router to send RA messages with M flag as 1 by using the interface command ipv6 nd managed-config-flag. What effect will this configuration have on the operation of the clients?
- AClients must use the information that is contained in RA messages.
- BClients must use the prefix and prefix length that are provided by a DHCPv6 server and generate a random interface ID.
- CClients must use the prefix and prefix length that are provided by RA messages and obtain additional information from a DHCPv6 server.
- DClients must use all configuration information that is provided by a DHCPv6 server.
35Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment?
- Aip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN-POOL-100
network 192.168.100.0 255.255.254.0
default-router 192.168.100.1 - Bip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.100.254
ip dhcp pool LAN-POOL-100
network 192.168.100.0 255.255.255.0
ip default-gateway 192.168.100.1 - Cdhcp pool LAN-POOL-100
ip dhcp excluded-address 192.168.100.1 192.168.100.9
ip dhcp excluded-address 192.168.100.254
network 192.168.100.0 255.255.254.0
default-router 192.168.101.1 - Dip dhcp excluded-address 192.168.100.1 192.168.100.9
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN-POOL-100
ip network 192.168.100.0 255.255.254.0
ip default-gateway 192.168.100.1
- Aip dhcp excluded-address 192.168.100.1 192.168.100.10
36What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?
- Aa randomly generated 64-bit hexadecimal address
- Ban IPv4 address that is configured on the interface
- Cthe MAC address of the IPv6 enabled interface
- Dan IPv6 address that is provided by a DHCPv6 server
37An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from a DHCPv6 server. Which address assignment method should be configured?
- ASLAAC
- BRA and EUI-64
- Cstateless DHCPv6
- Dstateful DHCPv6
38Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?
- Abroadcast DHCPREQUEST
- Bunicast DHCPREQUEST
- Cunicast DHCPACK
- Dbroadcast DHCPACK
39A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem?
- AIssue the command ip helper-address 10.10.100.0 on the router interface that is the 10.10.200.0/24 gateway.
- BIssue the command default-router 10.10.200.10 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.
- CIssue the command network 10.10.200.0 255.255.255.0 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.
- DIssue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway.
40A company uses the SLAAC method to configure IPv6 addresses for the employee workstations. Which address will a client use as its default gateway?
- Athe global unicast address of the router interface that is attached to the network
- Bthe unique local address of the router interface that is attached to the network
- Cthe link-local address of the router interface that is attached to the network
- Dthe all-routers multicast address
41Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?
- Aclient hardware address
- Bclient IP address
- Cbroadcast MAC address
- Dgateway IP address
42An administrator issues the commands:
Router(config)# interface g0/1
Router(config-if)# ip address dhcp
What is the administrator trying to achieve?- Aconfiguring the router to obtain IP parameters from a DHCPv4 server
- Bconfiguring the router to act as a relay agent
- Cconfiguring the router to resolve IP address conflicts
- Dconfiguring the router to act as a DHCPv4 server
43How does an IPv6 client ensure that it has a unique address after it configures its IPv6 address using the SLAAC allocation method?
- AIt sends an ARP message with the IPv6 address as the destination IPv6 address.
- BIt checks with the IPv6 address database that is hosted by the SLAAC server.
- CIt sends an ICMPv6 Neighbor Solicitation message with the IPv6 address as the target IPv6 address.
- DIt contacts the DHCPv6 server via a special formed ICMPv6 message.
44What are two of the required steps to configure PAT? (Choose two.)
- Afine the hello and interval timers to match the adjacent neighbor router
- BDefine the range of source ports to be used.
- CIdentify the inside interface.
- DCreate a standard access list to define applications that should be translated.
- EDefine a pool of global addresses to be used for overload translation.
45Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?
- AUse DHCP to assign addresses from the pool of Class B addresses.
- BUse dynamic NAT to provide addresses for the servers.
- CAssign static internal addresses and public external addresses to each of the servers.
- DPlace all of the servers in their own Class C private subnet.
46Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?
- Aaccess-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
ip nat inside source static 10.0.0.5 209.165.200.225 - Baccess-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp - Caccess-list 1 permit 10.0.0.0 0.255.255.255
ip nat inside source list 1 interface serial 0/0/0 overload - Daccess-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
- Aaccess-list 1 permit 10.0.0.0 0.255.255.255
47Typically, which network device would be used to perform NAT for a corporate environment?
- Aserver
- BDHCP server
- Crouter
- Dhost device
- Eswitch
48Refer to the exhibit. The NAT configuration applied to the router is as follows:
ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255
ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224
ERtr(config)# ip nat inside source list 1 pool corp overload
ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4
ERtr(config)# interface gigabitethernet 0/0
ERtr(config-if)# ip nat inside
ERtr(config-if)# interface serial 0/0/0
ERtr(config-if)# ip nat outside
Based on the configuration and the output shown, what can be determined about the NAT status within the organization?
- AStatic NAT is working, but dynamic NAT is not.
- BNAT is working.
- CDynamic NAT is working, but static NAT is not.
- DNot enough information is given to determine if both static and dynamic NAT are working.
49Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?
- Adynamic NAT with a pool of two public IP addresses
- Bstatic NAT with one entry
- Cstatic NAT with a NAT pool
- DPAT using an external interface
50What is a disadvantage of NAT?
- AThe costs of readdressing hosts can be significant for a publicly addressed network
- BThe router does not need to alter the checksum of the IPv4 packets.
- CThe internal hosts have to use a single public IPv4 address for external communication
- DThere is no end-to-end addressing.
51A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did the engineer use the overload option?
- AThe company has a small number of servers that should be accessible by clients from the Internet.
- BThe company router must throttle or buffer traffic because the processing power of the router is not enough to handle the normal load of external-bound Internet traffic.
- CThe company has more private IP addresses than available public IP addresses.
- DThe company needs to have more public IP addresses available to be used on the Internet.
52Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?
- AInterface Fa0/0 should be identified as an outside NAT interface
- BNAT-POOL2 is not bound to ACL 1.
- CAccess-list 1 is misconfigured.
- DThe NAT pool is incorrect.
53A network administrator is configuring a static NAT on the border router for a web server located in the DMZ network. The web server is configured to listen on TCP port 8080. The web server is paired with the internal IP address of 192.168.5.25 and the external IP address of 209.165.200.230. For easy access by hosts on the Internet, external users do not need to specify the port when visiting the web server. Which command will configure the static NAT?
- AR1(config)# ip nat inside source static tcp 209.165.200.230 8080 192.168.5.25 80
- BR1(config)# ip nat inside source static tcp 192.168.5.25 80 209.165.200.230 8080
- CR1(config)# ip nat inside source static tcp 209.165.200.230 80 192.168.5.25 8080
- DR1(config)# ip nat inside source static tcp 192.168.5.25 8080 209.165.200.230 80
54Which statement accurately describes dynamic NAT?
- AIt provides an automated mapping of inside local to inside global IP addresses
- BIt always maps a private IP address to a public IP address.
- CIt dynamically provides IP addressing to internal hosts.
- DIt provides a mapping of internal host names to IP addresses.
55When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?
- AAll users can access the server.
- BNo users can access the server.
- CThe first user gets disconnected when the seventh user makes the request
- DThe request to the server for the seventh user fails
56What is an advantage of deploying IPv4 NAT technology for internal hosts in an organization?
- Aprovides flexibility in designing the IPv4 addressing scheme
- Bmakes internal network access easy for outside hosts using UDP
- Cenables the easy deployment of applications that require end-to-end traceability
- Dincreases the performance of packet transmission to the Internet
57What is a characteristic of unique local addresses?
- AThey are defined in RFC 3927
- BThey allow sites to be combined without creating any address conflicts.
- CThey are designed to improve the security of IPv6 networks.
- DTheir implementation depends on ISPs providing the service
58What is the purpose of port forwarding?
- APort forwarding allows for translating inside local IP addresses to outside local addresses.
- BPort forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.
- CPort forwarding allows users to reach servers on the Internet that are not using standard port numbers.
- DPort forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.
59Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?
- Aoutside local
- Binside local
- Cinside global
- Doutside global
60Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?
- Adefines which addresses are allowed out of the router
- Bdefines which addresses are assigned to a NAT pool
- Cdefines which addresses are allowed into the router
- Ddefines which addresses can be translated
61Which type of NAT maps a single inside local address to a single inside global address?
- Adynamic
- Bstatic
- Cport address translation
- Doverloading
62A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp. What is required to be configured in order for this particular command to be functional?
- Aan access list named corp that defines the private addresses that are affected by NAT
- Ba VLAN named corp to be enabled and active and routed by R1
- Can access list numbered 4 that defines the starting and ending public IP addresses
- Da NAT pool named corp that defines the starting and ending public IP addresses
- Eip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
63What is the primary purpose of NAT?
- Aallow peer-to-peer file sharing
- Benhance network performance
- Cincrease network security
- Dconserve IPv4 addresses
64Refer to the exhibit. What has to be done in order to complete the static NAT configuration on R1?
- AR1 should be configured with the command ip nat inside source static 209.165.200.1 192.168.11.11.
- BR1 should be configured with the command ip nat inside source static 209.165.200.200 192.168.11.11.
- CInterface Fa0/0 should be configured with the command no ip nat inside
- DInterface S0/0/0 should be configured with the command ip nat outside.
65Refer to the exhibit. What will be the effect of entering the command that is shown in the exhibit on R2 as part of the dynamic NAT configuration?
- AIt will bind NAT-POOL1 with ACL 1.
- BIt will identify an inside NAT interface.
- CIt will define the source ACL for the external interface
- DIt will define a pool of addresses for translation
Informações
- Descrição
- Router and Routing Basics Exam Ch 9, 10, 11
- Autor
- Anthony Schulmeister
- Idioma
- English
- Visualizações
- 625
- Etiquetas
- Avaliação
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