Which of the following OSI layers offers reliable,
connection-oriented data communication services?
Router interface Ethernet 0 has been assigned the IP
address 10.172.192.168 255.255.255.240. What is the network IP address of this
Examine the graphic with current configurations. The New
York Offices of ABC Company recently upgraded the computers in the
administrative office. Shortly after the upgrade, Host A in the clerical office
failed and was replaced with one of the retired administrative office
computers. However, the computer can not access the company network in the new
location. What is the likely cause of this network access issue for Host A?
MAC address incorrectly entered
*default gateway incorrectly entered
subnet mask incorrectly entered
IP address incorrectly entered
Which of the following increases the potential for a
collision to occur?
the use of an active hub instead of an intelligent hub
the use of an intelligent hub instead of an active hub
a reduction in the number of devic 17517c25r es attached to the hub
*an increase in the number of devic 17517c25r es attached to the hub
What is attenuation?
opposition to the flow of current
measurement of electrical signals relative to time
*degradation of a signal as it travels along the medium
amount or volume of traffic that is flowing on the medium
Two peer hosts are running applications that exchange data
using UDP. During the current session, a datagram fails to arrive at the
destination. What is true concerning the retransmission of the datagram?
*Datagram retransmission occurs when the retransmission
timer expires in the source host.
Datagram retransmission occurs when the retransmission
timer expires in the destination host.
Datagram retransmission is controlled by the application
Datagram retransmission involves only the data with
sequence numbers equal to or higher than the sequence number of the current
What is significant about the ping 127.0.0.1 command?
*It verifies the operation of the TCP/IP protocol stack on
a host and is called an internal loopback test.
It verifies connection to the remote host with the IP
It verifies whether the router that connects the local
network to other networks can be reached.
It verifies the route packets take between the local host
and the host with the IP address 127.0.0.1.
Which LAN switching mode has the highest latency?
Which of the following application layer protocols use UDP
segments? (Choose two.)
Which cable specifications are indicated by 100BASE-T?
100-Mbps transmission speed, baseband signal, coaxial
100-Mbps transmission speed, broadband signal,
*100-Mbps transmission speed, baseband signal,
Equal to 10-Gbps transmission speed, baseband signal,
When is a crossover cable used in a network?
when connecting a host to the router console port
when connecting a host to a switch
*when connecting a host to a host
when connecting a switch to a router
Refer to the graphic. What must be configured on Host A to
allow it communicate with the e-mail server? (Choose three.)
IP address *
subnet mask *
default gateway *
NetBIOS name address
Which cable diagram displays the end to end pinout for a
crossover cable used with Cisco devices?
Which type of address is 192.168.17.134/29?
How many collision domains are shown in the diagram?
When is a straight-through cable used in a network?
when connecting a router through the console port
when connecting one switch to another switch
*when connecting a host to a switch
when connecting a router to another router
How does network cable length affect attenuation?
Category 5 cable that is run in metal conduit has the
highest attenuation in the shortest distance.
Shorter cable lengths have greater signal attenuation.
*Longer cable lengths have greater signal attenuation.
The length of the cable has no effect on signal attenuation.
Which of the following statements are correct about
CSMA/CD? (Choose three.)
It is a media access method used in LANs. *
It is a media access method used in FDDI WANs.
When a device needs to transmit, it checks to see if the
media is available. *
A device sends data without checking media availability
because all devices have equal access. Multiple devices can successfully
*Only one device can successfully transmit at a time.
Which of the following must be present for current to
flow? (Choose three.)
*source of voltage
If Host A pings Host B through a newly installed switch
with no entries in the MAC address table, which stations will receive the ping
A and B
B and switch
A, B, and switch
B, C, D, and switch *
A, B, C, D, and switch
Which devices shown in the graphic must have a MAC
PC and router
PC, hub, and router
*PC, printer, and router
What kind of connection is represented in the graphic?
leased line connection
Which of the following is the decimal representation of
the binary number 11010011?
Which type of cable is required to make a connection
between a router console port and a PC COM port?
Determine the number of useable networks and hosts for the
IP address 192.168.50.0/27
4 networks / 62 hosts
6 networks / 64 hosts
32 networks / 8 hosts
*6 networks / 30 hosts
8 networks / 32 hosts
2 networks / 8 hosts
A network administrator is placing an older router back in
to service. The administrator discovered that the IOS and configuration files
need to be updated to meet the LAN specifications. Which application layer
protocol is used to transfer the new configuration files into the router
Which of the following best describes Spanning Tree
It enables a network to span across multiple physical
*It enables a switch to eliminate switching loops.
It enables a switch to dynamically choose the best switch
It enables a switch to perform as a router.
Which of the following subnet masks could be used when
subnetting a Class B IP address? (Choose two.)
How is data encapsulated as it is moved down the OSI
data, segments, frames, packets, bits
data, packets, segments, frames, bits
*data, segments, packets, frames, bits
data, packets, frames, segments, bits
Which of the following describes latency?
the noise generated from outside a cable
the degradation of a signal as it travels along the media
the time required for a NIC to place a frame on the
*the delay between the time a frame leaves its source
device and reaches its destination
Which of the following is the binary representation of the
decimal number 111?
Which LAN switching mode begins switching after reading
only the first 64 bytes of the frame?
When using Category 5 UTP cable, which RJ-45 pin pairs are
used to exchange data between hosts on an Ethernet network?
1 and 2; 4 and 5
1 and 2; 3 and 6 *
3 and 6; 7 and 8
4 and 5; 7 and 8
Which of the following commands could be used on a
Windows-based computer to view the current IP configuration of the system?
Which type of address is 192.168.17.111/28?
Which of the following networking devices increase the
number of collision domains? (Choose three.)
What information can be determined from the MAC addresses
of PC1, PC2, and PC3, as shown in the graphic? (Choose two.)
PC1 and PC2 NICs need to be replaced because they have the
same OUI identifier.
PC2 and PC3 NICs need to be replaced because they have
different OUI identifiers.
*PC1 and PC2 NICs are from the same vendor.
PC1 and PC3 NICs need to be replaced because they have the
same vendor-assigned address.
*PC2 and PC3 NICs are from different vendors.
PC2 and PC3 NICs are from the same vendor.
Which of the following are considered WAN technologies?
which one of the router connectors shown in the graphic
would be used for a LAN connection?
How is full-duplex capability typically achieved in
*Two fibers are encased in separate sheaths.
Light is bounced at different rates in opposite
Transmit speeds are so high that half-duplex is
Colors of the light spectrum are separated into transmit
and receive streams.
Which of the following are characteristics of IP? (Choose
unreliable protocol *
routed protocol *
Which of the following describe the token-passing logical
topology? (Choose two.)
*FDDI is an example of a token-passing network.
Token-passing logical topologies must also be physical
One of the disadvantages of the token-passing logical
topology is the high collision rate.
Computers transmit data after "listening" to the
wire to detect other traffic.
*Computers are allowed to transmit data only when they
possess a token.
What is the maximum length of a media segment used for
which of the following networking devices divide a network
into separate collision domains? (Choose two.)
Which of the following are characteristics of UTP cable?
*Each wire is covered by insulating material.
It is not affected by EMI or RFI.
*It is a four-pair wire medium.*
It is difficult to terminate the cable.
*It relies on the cancellation effect produced by the
twisted wire pairs.
It is more expensive than any other type of LAN cabling.
Examine the graphic with current configurations. Host A in
the Clerical offices failed and was replaced. Although a ping to 127.0.0.1 was
successful, the replacement computer can not access the company network. What
is the likely cause of the problem?
IP address incorrectly entered
network cables unplugged
*subnet mask incorrectly entered
network card failure
Which of the following describes a physical full-mesh
It requires termination at both ends of the cable.
It uses a hub or a switch as a central point to connect
*It provides maximum connectivity between all network
It links all computers to a main computer that controls
all traffic on the network.
Which two statements describe the TFTP protocol? (Choose
uses authenticated file transfer procedure
provides connection-oriented service
*provides connectionless service
provides more features that FTP
*lacks most of the features of FTP
Which of the following are transport layer protocols of
the TCP/IP model? (Choose two.)
Which type of UTP network cable connects two Cisco
How will the MAIN router dynamically learn a route to the
10.16.10.48/28 subnetwork in the diagram?
with a routed protocol
with a routing protocol
*with a static route
with a directly connected route
Which of the following describes the RIP version 1 routing
Cisco proprietary hybrid protocol
*distance vector protocol that uses hop count as the only
link state protocol supporting multiple routed protocols
distance vector protocol that uses delay, bandwidth, load,
and reliability metrics
How many broadcast domains are shown in the diagram?
Which of the following are advantages of UTP cable?
*less expensive than fiber optic
*flexible and easy to run in a building
distance between signal boosts is longer than it is for
*transmits data at a faster rate than any copper-based
receives less RMF and EMI interference than other types
Which of the following devices extend a collision domain?