5642233
Descripción
Test por Kenny Jean, actualizado hace más de 1 año
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Creado por Kenny Jean
hace casi 8 años
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Pregunta 1
Pregunta
What is a characteristic of a fault tolerant network?
Respuesta
-
a network that protects confidential information from unauthorized access
-
a network that can expand quickly to support new user and applications without impacting the performance of the service delivered to existing users
-
a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users
-
a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
Pregunta 2
Pregunta
Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?
Respuesta
-
audio conference, financial transactions, web page
-
financial transactions, web page, audio conference
-
audio conference, web page, financial transactions
-
financial transactions, audio conference, web page
Pregunta 3
Pregunta
What is a benefit of using cloud computing in networking?
Respuesta
-
End users have the freedom to use personal tools to access information and communicate across a business network.
-
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
-
Technology is integrated into everyday appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated
-
Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.
Pregunta 4
Pregunta
What is the function of the shell in an OS?
Respuesta
-
It interacts with the device hardware
-
It interfaces between the users and the kernel.
-
It provides dedicated firewall services.
-
It provides the intrusion protection services for the device.
Pregunta 5
Pregunta
Which connection provides a secure CLI session with encryption to a Cisco switch?
Respuesta
-
a console connection
-
an AUX connection
-
a Telnet connection
-
an SSH connection
Pregunta 6
Pregunta
A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1
255.255.255.0. The command is rejected by the device. What is the
reason for this?
Respuesta
-
The command is being entered from the wrong mode of operation.
-
The command syntax is wrong.
-
The subnet mask information is incorrect
-
The interface is shutdown and must be enabled before the switch will accept the IP address.
Pregunta 7
Pregunta
An administrator uses the CtrlShift6 key combination on a switch after
issuing the ping command. What is the purpose of using these keystrokes?
Respuesta
-
to restart the ping process
-
to interrupt the ping process
-
to exit to a different configuration mode
-
to allow the user to complete the command
Pregunta 8
Pregunta
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user exec mode?
Respuesta
-
letmein
-
secretin
-
lineconin
-
linevtyin
Pregunta 9
Pregunta
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
Respuesta
-
FastEthernet0/1
-
vty 0
-
VLAN1
-
console 0
Pregunta 10
Pregunta
What is an advantage to using a protocol that is defined by an open standard?
Respuesta
-
A company can monopolize the market.
-
The protocol can only be run on equipment from a specific vendor.
-
An open standard protocol is not controlled or regulated by standards organizations.
-
It encourages competition and promotes choices
Pregunta 11
Pregunta
What protocol is responsible for controlling size of segments and the rate at which segments are exchanged between a web client and web server
Respuesta
-
TCP
-
IP
-
Ethernet
-
HTTP
Pregunta 12
Pregunta
What are two benefits of using a layered network model (choose two)?
Respuesta
-
It assists in protocol design
-
It speeds up packet delivery
-
It prevents designers from creating their own model
-
It prevents technology in one layer from affecting other layers
-
It ensures a device at one layer can function at the next higher layer
Pregunta 13
Pregunta
Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)
Respuesta
-
data link
-
network
-
physical
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session
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transport
Pregunta 14
Pregunta
Which name is assigned to the transport layer PDU?
Respuesta
-
bits
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data
-
frame
-
packet
-
segment
Pregunta 15
Pregunta
A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughout appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)
Respuesta
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the amount of traffic that is currently crossing the network
-
the sophistication of the encapsulation method applied to the data
-
the type of traffic that is crossing the network
-
the latency that is created by the number of network devices that the data is crossing
-
the bandwidth of the WAN connection to the internet
-
the reliability of the gigabit Ethernet infrastructure of the backbone
Pregunta 16
Pregunta
A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized.
Respuesta
-
presentation layer
-
network layer
-
physical layer
-
data link layer
Pregunta 17
Pregunta
What is a characteristic of UTP cabling?
Respuesta
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cancellation
-
cladding
-
immunity to electrical hazards
-
woven copper braid or metallic foil
Pregunta 18
Pregunta
Which three addresses are valid public addresses? (choose three)
Respuesta
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198.133.219.17
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192.168.1.245
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10.15.250.5
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128.107.12.117
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192.15.301.240
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64.104.78.227
Pregunta 19
Pregunta
What type of IPv6 address is FE80::1
Respuesta
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loopback
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link-local
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multicast
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global unicast
Pregunta 20
Pregunta
Why does a layer 3 device perform the ANDing process on a destination IP address and subnet mask?
Respuesta
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to identify the broadcast address of the destination network
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to identify the host address of the destination host
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to identify faulty frames
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to identify the network address of the destination network
Pregunta 21
Pregunta
Refer to the exhibit. An administrator is testing connectivity to a remote device with the IP address 10.1.1.1 What does the output of this command indicate?
Respuesta
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connectivity to the remote device was successful
-
a router along the path did not have a route to the destination
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a ping packet is being blocked by a security device along the path
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the connection timed out while waiting for a reply from the remote device
Pregunta 22
Pregunta
When applied to a router, which command would help mitigate brute-force password attacks against the router?
Respuesta
-
exec-timeout 30
-
service password-encryption
-
banner motd $Max failed logins =5$
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login block-for 60 attempts 5 within 60
Pregunta 23
Pregunta
Which two roles can a computer assume in a peer-to-peer network where a file is being shared between two computers? (choose two)
Respuesta
-
client
-
master
-
server
-
slave
-
transient
Pregunta 24
Pregunta
which two protocols operate at the highest layer of the TCP/IP protocol stack? (choose two)
Respuesta
-
Ethernet
-
IP
-
DNS
-
POP
-
TCP
-
UDP
Pregunta 25
Pregunta
What are two functions of NVRAM? (Choose two)
Respuesta
-
to retain contents when power is removed
-
to store the startup configuration file
-
to store the routing table
-
to contain the running configuration file
-
to store the ARP table
Pregunta 26
Pregunta
Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?
Respuesta
-
DD:DD:DD:DD:DD:DD
-
172.168.10.99
-
CC:CC:CC:CC:CC:CC
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172.168.10.65
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BB:BB:BB:BB:BB:BB
-
AA:AA:AA:AA:AA:AA
Pregunta 27
Pregunta
What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?
Respuesta
-
TCP
-
IP
-
HTTP
-
Ethernet
Pregunta 28
Pregunta
What is the process of dividing a data stream into smaller pieces before transmission?
Respuesta
-
segmentation
-
encapsulation
-
encoding
-
flow control
Pregunta 29
Pregunta
What are two characteristics shared by TCP and UDP? (Choose two)
Respuesta
-
default window size
-
connectionless communication
-
port numbering
-
3-way handshake
-
use of checksum
-
ability to carry digitized voice
Pregunta 30
Pregunta
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
Respuesta
-
255.255.255.0
-
255.255.255.128
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255.255.255.192
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255.255.255.224
-
255.255.255.240
Pregunta 31
Pregunta
A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and number of devices:
Subnetwork A: IP phones - 10 addressses
Subnetwork B: PCs - 8 addresses
Subnetwork C: Printers - 2 addresses
Respuesta
-
255.255.255.0
-
255.255.255.240
-
255.255.255.248
-
255.255.255.252
Pregunta 32
Pregunta
Which subnet would include the address 192.168.1.96 as a usable host address?
Respuesta
-
192.168.1.64/26
-
192.168.1.32/27
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192.168.1.32/28
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192.168.1.64/29
Pregunta 33
Pregunta
What is the binary representation of 0xCA?
Respuesta
-
10111010
-
1110101
-
11001010
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11011010
Pregunta 34
Pregunta
What are the three ranges of IP addresses that are reserved for internal private use? (choose three)
Respuesta
-
10.0.0.0/8
-
64.100.0.0/14
-
127.16.0.0/12
-
172.16.0.0/12
-
192.31.7.0/24
-
192.168.0.0/16
Pregunta 35
Pregunta
Which two functions are primary functions of a router? (Choose two)
Respuesta
-
packet fowarding
-
microsegmentation
-
domain name resolution
-
path selection
-
flow control
Pregunta 36
Pregunta
Which switching method has the lowest level of latency?
Respuesta
-
cut-through
-
store-and-foward
-
fragment-free
-
fast-foward
Pregunta 37
Pregunta
What will a host on an Ethernet network do if it received a frame with destination MAC address that does not match its own MAC address?
Respuesta
-
it will discard the frame
-
it will foward the frame to the next host
-
it will remove the frame from the media
-
it will strip off the data-link frame to check the desination IP address
Pregunta 38
Pregunta
During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?
Respuesta
-
an IP address is added
-
the logical address is added
-
the physical address is added
-
the process port number is added
Pregunta 39
Pregunta
Which procedure is used to reduce the effect of crosstalk in copper cables
Respuesta
-
requiring proper grounding connections
-
twisting opposing circuit wire pairs together
-
wrapping the bundle of wires with metallic shielding
-
designing a cable infrastucture to avoid crosstalk interference
-
avoiding sharp bends during installation
Pregunta 40
Pregunta
What unique address is embedded in an Ethernet NIC and used for communication on an Ethernet network?
Respuesta
-
host address
-
IP address
-
MAC address
-
network address
Pregunta 41
Pregunta
What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?
Respuesta
-
TCP
-
IP
-
HTTP
-
Ethernet
Pregunta 42
Pregunta
What function does pressing the Tab key have when entering a command in IOS?
Respuesta
-
It aborts the current command and returns to configuration mode
-
It exits configuration mode and returns to user EXEC mode
-
It moves the cursor to the beginning of the next line
-
It completes the remainder of a partially typed word in a command
Pregunta 43
Pregunta
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator has already logged into a Telnet session on the switch, which password is needed to access privileged EXEC mode?
Respuesta
-
letmein
-
secretin
-
lineconin
-
linevtyin
Pregunta 44
Pregunta
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?
Respuesta
-
DSL
-
dial-up
-
satellite
-
cell modem
-
cable modem
Pregunta 45
Pregunta
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?
Respuesta
-
LAN
-
MAN
-
WAN
-
WLAN
Pregunta 46
Pregunta
On which switch interface would an administrator configure an IP address so that the switch can managed remotely?
Respuesta
-
FastEthernet0/1
-
VLAN 1
-
vty 0
-
console 0
Pregunta 47
Pregunta
After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command
Respuesta
-
the new configuration will be stored in flash memory
-
the new configuration will be loaded if the switch is restarted
-
the current IOS file will be replaced with the newly configured files
-
the configuration changes will be removed and the original configuration will be restored
Pregunta 48
Pregunta
Which example of malicious code would be classified as a trojan horse?
Respuesta
-
malware that was written to look like a video game
-
malware that requires manual user intervention to spread between systems
-
malware that attaches itself to a legitimate program and spreads to other programs when launched
-
malware that can automatically spread from one system to another by exploiting a vulnerability in the target
Pregunta 49
Pregunta
A wireless host needs to request an IP address. What protocol would be used to process the request?
Respuesta
-
FTP
-
HTTP
-
DHCP
-
ICMP
-
SNMP
Pregunta 50
Pregunta
What address are mapped by ARP?
Respuesta
-
destination MAC address to a destination IPv4 address
-
destination IPv4 address to the source MAC address
-
destination IPv4 address to the destination host name
-
destination MAC address to the source IPv4 address
Pregunta 51
Pregunta
What are two services provided by the OSI network layer (Choose two)
Respuesta
-
performing error detection
-
routing packets toward the destination
-
encapsulating PDUs from the transport layer
-
placement of frames on the media
-
collision detection
Pregunta 52
Pregunta
What is the dotted decimal representation of the IPv4 address 11001011.00000000.0110001.11010011?
Respuesta
-
192.0.2.199
-
198.25.100.201
-
203.0.113.211
-
209.165.201.223
Pregunta 53
Pregunta
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask
Respuesta
-
64
-
254
-
190
-
192
-
62
Pregunta 54
Pregunta
When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address
Respuesta
-
DNS server address
-
subnet mask
-
default gateway
-
DHCP server address
Pregunta 55
Pregunta
Which type of UTP cable is used to connect a PC to a switch port
Respuesta
-
console
-
rollover
-
crossover
-
straight-through
Pregunta 56
Pregunta
Which statement is true about variable-length subnet masking?
Respuesta
-
the size of each subnet may be different, depending on requirments
-
each subnet is the same size
-
subnets may only be subnetted one additional time
-
bits are returned, rather than borrowed, to create additional subnets
Pregunta 57
Pregunta
Refer to the exhibit. Consider the IP address of 192.168.10.0/24 that has been assigned to a high school building. The largest network in this building has 100 devices. If 192.168.10.0 is the network number for the largest network, what would be the network number for the next largest network, which has 40 devices?
Respuesta
-
192.168.10.0
-
192.168.10.128
-
192.168.10.192
-
192.168.10.224
-
192.168.10.240
Pregunta 58
Pregunta
What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device
Respuesta
-
timing and synchronization
-
destination and source port number s
-
destination and source physical addresses
-
destination and source logical network addresses
Pregunta 59
Pregunta
What is the function of the HTTP GET message?
Respuesta
-
to request an HTML page from a web server
-
to send error information from a web server to a web client
-
to upload content to a web server from a web client
-
to retrieve client email from an email server using TCP port 110
Pregunta 60
Pregunta
What are two ways that TCP uses the sequence numbers in a segment? (choose two)
Respuesta
-
to identify missing segments at the destination
-
to reassemble the segments at the remote location
-
to specify the order in which the segments travel from source to destination
-
to limit the number of segments that can be sent out of an interface at one time
-
to determine if the packet changed during transit
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