In the graphic, Host A has reached 50% completion in sending a 1 KB
Ethernet frame to Host D when Host B wishes to transmit its own
frame to Host C. What must Host B do?
Host B must wait until it is certain that Host A has completed
sending its frame.
Ethernet operates at which layers of the OSI model? (Choose two.)
Which of the following describe interframe spacing? (Choose two.)
the minimum interval, measured in bit-times, that any station must
wait before sending another frame
the time allowed for slow stations to process a frame and prepare
for the next frame
What three primary functions does data link layer encapsulation
provide? (Choose three.)
When a collision occurs in a network using CSMA/CD, how do hosts
with data to transmit respond after the backoff period has expired?
The hosts return to a listen-before-transmit mode.
What are three functions of the upper data link sublayer in the OSI
model? (Choose three.)
identifies the network layer protocol
makes the connection with the upper layers identifies the source and
insulates network layer protocols from changes in physical equipment
What does the IEEE 802.2 standard represent in Ethernet
Why do hosts on an Ethernet segment that experience a collision use
a random delay before attempting to transmit a frame?
A random delay helps prevent the stations from experiencing another
collision during the transmission.
Refer to the exhibit. Which option correctly matches the frame field
type with the contents that frame field includes?
header field - preamble and stop frame
Host A has an IP address of 172.16.225.93 and a mask of
255.255.248.0. Host A needs to communicate with a new host whose IP
is 172.16.231.78. Host A performs the ANDing operation on the
destination address. What two things will occur? (Choose two.)
Host A will broadcast an ARP request for the MAC of the destination
A result of 172.16.225.255 will be obtained.
Which of the following is a drawback of the CSMA/CD access method?
Collisions can decrease network performance..
Ethernet operates at which layer of the TCP/IP network model?
What is the primary purpose of ARP?
URLs to IP addresses
resolve IPv4 addresses to MAC addresses
to the exhibit. The switch and workstation are administratively
configured for full-duplex operation. Which statement accurately
reflects the operation of this link?
No collisions will occur on this link.
to the exhibit. Host_A is attempting to contact Server_B. Which
statements correctly describe the addressing Host_A will generate in
the process? (Choose two.)
A frame with the destination MAC address of Router_A.
A packet with the destination IP of Server_B.
Which statements correctly describe MAC addresses? (Choose three.)
copied into RAM during system startup
contains a 3 byte OUI
6 bytes long
Which two features make switches preferable to hubs in
Ethernet-based networks? (Choose two.)
minimizing of collisions
for UTP cabling
division into broadcast domains
in the throughput of communications
What are the two most commonly used media types in Ethernet networks
today? (Choose two.)
shielded twisted pair
Convert the binary number 10111010 into its hexadecimal equivalent.
Select the correct answer from the list below.
After an Ethernet collision, when the backoff algorithm is invoked,
which device has priority to transmit data?
any device in the collision domain whose backoff timer expires first
that began transmitting at the same time
to the exhibit. What command was executed on a host computer to
produce the results shown?
Refer to the exhibit. A student working in the lab selects a cable
that is wired as shown. Which connection types can successfully be
made with this cable? (Choose two.)
connecting two routers together via their fast ethernet ports
connecting two switches together at gigabit speeds
Which three statements are true about the role of routers in the
network? (Choose three.)
They interconnect different network technologies.
Each router interface requires a separate network or subnet.
They maintain a common frame format between LAN and WAN interfaces.
Refer to the exhibit. A network administrator has decided to use
packet capture software to evaluate all traffic from the student
subnet on the way to the Internet. To ensure that all packets are
captured, what network device should be used to connect the
monitoring station to the network between R1 and R2?
A network administrator is required to use media in the network that
can run up to 100 meters in cable length without using repeaters.
The chosen media must be inexpensive and easily installed. The
installation will be in a pre-existing building with limited cabling
space. Which type of media would best meet these requirements?
Refer to the exhibit. Which three statements are true about the
exhibited topology? (Choose three.)
Five broadcast domains are present.
Host B is using a crossover cable to connect to the router.
Which three types of connectors are commonly associated with Cisco's
V.35 serial cables? (Choose three.)
Winchester 15 pin
How many host addresses may be assigned on each subnetwork when
using the 18.104.22.168 network address with a subnet mask of
Refer to the exhibit. Based on the IP configuration shown, what
would be the result of Host A and Host B attempting to communicate
outside the network segment?
host A would be successful, host B would fail
Refer to the exhibit. What destination IP address will PC1 place in
the header for a packet destined for PC2?
Refer to the exhibit. Which three statements identify the type of
cabling that would be used in the segments that are shown? (Choose
Segment 1 uses a patch cable.
Segment 3 uses horizontal cabling.
Segment 4 uses vertical cabling.
A company is planning to subnet its network for a maximum of 27
hosts. Which subnet mask would provide the needed hosts and leave
the fewest unused addresses in each subnet?
Refer to the exhibit. A student is setting up a home network
primarily used for extensive file transfers, streaming video, and
gaming. Which network device is best suited to these types of
activities in the topology shown?
Refer to the exhibit. How many subnets are required to support the
network that is shown?
What does the term "attenuation" mean in data
loss of signal strength as distance increases
To establish a console connection from a computer to a Cisco router,
which cable wiring option would be used?
What makes fiber preferable to copper cabling for interconnecting
buildings? (Choose three.)
greater distances per cable run
Refer to the exhibit. A network technician has been allocated the
192.168.1.0/24 private IP address range for use in the network that
shown in the exhibit. Which subnet mask would be used to meet the
host requirements for segment A of this internetwork?
Which subnet mask would be assigned to the network address of
192.168.32.0 to provide 254 useable host addresses per subnetwork?
What type of network cable is used between a terminal and a console
Which option identifies the primary interface which would be used
for initial configuration of a Cisco router?
What are three common methods for setting a UTP Ethernet port to MDI
or MDIX operation? (Choose three.)
configuration of the device
cable color code association
the enabling of the mechanism to electrically swap the transmit and
the automatic detection and negotiating of MDI/MDIX operation of the
Which device is used to create or divide broadcast domains?
Refer to the exhibit. Assume that all devices are using default
settings. How many subnets are required to address the topology that
Refer to the exhibit. What command will place the router into the
correct mode to configure an appropriate interface to connect to a
UBAMA(config)# interface FastEthernet 0/1
In a Cisco router, when do changes made to the running-configuration
when the configuration is saved to the startup-configuration
Refer to the exhibit. A technician applies the configuration in the
exhibit to a clean router. To verify the configuration, the
technician issues the show running-config command in the CLI session
with the router. What lines should the technician expect to see in
the router output from the show running-config command?
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0
password 7 14141E0A1F17
When network services fail, which port is most often used to access
a router for management purposes?
Refer to the exhibit. A network administrator on HostA has problems
accessing the FTP server. Layer three connectivity testing was
successful from HostA to the S1 interface of RouterB. Which set of
commands will allow the network administrator to telnet to RouterB
and run debug commands?
RouterB(config)# enable secret class
line vty 0
Users in the network are experiencing slow response time when doing
file transfers to a remote server. What command could be issued to
determine if the router has experienced any input or output errors?
Refer to the exhibit. Which names correctly identify the CLI mode
represented by the prompt for Switch-East4#? (Choose two.)
global configuration mode
What command is used to change the default router name to Fontana?
Router(config)# hostname Fontana
serial connection shown in the graphic needs to be configured. Which
configuration commands must be made on the Sydney router to
establish connectivity with the Melbourne site? (Choose three.)
Sydney(config-if)# ip address 22.214.171.124 255.255.255.0
Sydney(config-if)# no shutdown
Sydney(config-if)# clock rate 56000
Refer to the exhibit. The output is shown for the show ip route
command executed on Router A. What does the IP address 192.168.2.2
assigned to the serial port on Router B
Refer to the exhibit. What additional command is required to allow
remote access to this switch?
NA-SW1(config)# ip default-gateway address
Immediately after a router completes its boot sequence, the network
administrator wants to check the routers configuration. From
privileged EXEC mode, which of the following commands can the
administrator use for this purpose? (Choose two.)
Which three terms correctly define the forms of help available
within the Cisco IOS? (Choose three.)
command syntax check
Refer to the exhibit. A student is responsible for the IP
addressing, configuration and connectivity testing of the network
shown in the graphic. A ping from host B to host C results in a
destination unreachable but a ping from host B to host A was
successful. What two reasons could account for this failure based on
the graphic and partial router output for the Dallas router? (Choose
The S0/0/1 IP address of Dallas is improperly configured.
The Fa0/0 interface on Dallas is in a different subnet than host
Which combination of keys would be used at the CLI prompt to
interrupt a ping or traceroute process?
The connection between routers B and C has been successfully tested.
However, after rebooting router C, the administrator noticed the
response time between networks 10.10.3.0 and 10.10.4.0 is slower.
Ping between the two routers is successful. A trace route indicates
three hops from router B to router C. What else can be done to
troubleshoot the problem?
Issue a show interfaces command on router C.
In a Cisco device, where is the IOS file stored prior to system
On a Cisco router, which interface would be used to make the initial
A network administrator needs to keep the user ID, password, and
session contents private when establishing remote CLI connectivity
with a router to manage it. Which access method should be chosen?