What is a WAN?
A. A network that
connects users across a large geographic area
B. A network that
connects devices in a workgroup setting
C. A network that
connects business departments in a building
D. A network that
connects physically adjacent devices
Which describes
Layer 3 path determination in the OSI model?
A. Enables switches
to find the best path to a host
B. Enables a switch
to choose the next hop
C. Determines
how a packet is forwarded on the same subnetwork
D. Enables
a router to choose the next hop
Which protocol
can find the MAC address of a computer given its IP address?
A. RARP
B. DHCP
C. ARP
D. Proxy RARP
Which is a
network layer protocol that can be routed?
A. IP
B. ISP
C. NetBEUI
D. ARP
What is specified
by the network number in an IP address?
A. The network to
which the host belongs
B. The identity of
the computer on the network
C. The node that is
being addressed
D. The network
broadcast identity of subnetwork
How many bits are in the network and subnet portion of a class B
network with a
subnet mask of 255.255.240.0?
A. 18
B. 19
C. 20
D. 21
Why is a static
route the preferred method for reaching stub networks?
A. Static routing
requires less overhead
B. Static routing
requires more overhead on the network
C. This allows
routers to adjust to changes in the network
D. The routes are
learned automatically
What correctly describes the five conversion steps of data
encapsulation?
A. Data-segments-packets-frames-bits
B. Data-packets-segments-frames-bits
C. Data-frames-segments-packets-bits
D. Data-segments-frames-packets-bits
What is the data-link destination address of a broadcast message?
A. 111.111.111.111
B. 255.255.255.255
C. AAAA.AAAA.AAAA
D. FFFF.FFFF.FFFF
What happens
after a collision has occurred on a network after the jam signal is sent?
A. The router clears
the route and notifies the source to resend
B. All stations stop
sending frames for a randomly selected time period
C. A keepalive
signal is generated to hold the message until the route clears
D. The source
station waits for the collision to dissipate and then broadcasts an all clean
If a Class B network is subnetted with a mask of 255.255.240.0,
how many useable
subnets are created?
A. 2
B. 6
C. 14
D. 30
Which technique controls the amount of unacknowledged data in
transit at any one
time and helps enable TCP reliability?
A. Windowing
B. Broadcasting
C. Error recovery
D. Collision
avoidance
Which is an
example of a data circuit terminating equipment (DCE)?
B. Computer
C. Router
D. Multiplexer
When working with Cisco IOS, at which level of access are users
able to
view router status but are unable to change router configuration?
A. User mode
B. Enable mode
C. Privileged
mode
D. Global configuration
mode
If you are unsure of the options (subcommands) for a command,
which keystroke(s)
should you try on the user interface of a Cisco router?
A. Help
B. {space} ?
C. CTRL-H
D. CTRL-P
Which Cisco IOS
command is used to enter privileged mode?
A. admin
B. root
C. enable
D. privileged
Which of the
following are stored in NVRAM?
A. Routing Tables
B. Configuration
Files
C. IOS Image
D. Power on
diagnostics
Which port is
used to initially configure a router?
A. Auxiliary
B. Console
C. Serial
D. BRI
Which router component provides working memory for configuration
files and
routing tables?
A. RAM
B. ROM
C. Flash
D. NVRAM
Someone got into a router configuration file and changed the
password to access
privileged mode. Which mode on the router enables you to recover
passwords?
A. SETUP
B. RXBOOT
C. Privileged
EXEC
D. Global
configuration
Which Cisco IOS
command shows the configuration file stored in NVRAM?
A. show version
B. show
running-config
C. show
startup-config
D. show interfaces
In which OSI
Layer does the Cisco Discovery Protocol (CDP) operate?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
Which Cisco IOS
command displays routing table entries?
A. ping
B. trace
C. show
ip route
D. show
interface
Which keys are pressed in the escape sequence to terminate the
initial configuration
while in setup mode?
A. ESC
B. CTRL-C
C. CTRL-ESC
D. CTRL-SHIFT-6
, X
What is the
function of the erase startup-config
command?
A. It deletes the
current IOS from NVRAM
B. It deletes the
configuration file in RAM
D. It deletes the
bootstrap image from Flash memory
What is the
function of the reload command?
A. It reboots the
router
B. It saves the new
IOS to Flash memory
C. It loads a new
configuration file in NVRAM
D. It loads a
configuration file from a TFTP server
You want to create a message to let people know a little something
about the network
or router when they log on - what command enables you to do this?
A. Banner msg
C. Daily msg
D. Daily motd
Which command is used to backup the active configuration file from
a router to a
network server?
A. copy tftp startup-config
B. copy
running-config tftp
C. copy
tftp flash
D. copy
NVRAM tftp
Which keys are pressed to leave configuration mode completely and
return the router
to privileged EXEC mode?
A. ESC
B. CTRL-C
C. CTRL-Z
D. CTRL-SHIFT-6
, X
Where is the next
place a router looks if it cannot find the IOS image in flash?
A. RAM
B. ROM
C. TFTP
D. NVRAM
Which Layer of
the OSI model is concerned with the topology of a network?
A. Transport
B. Network
C. Data Link
D. Physical
Which routing protocol maintains a complex database of topology
information and uses link-state
advertisements
(LSAs)?
A. RIP
B. IGRP
C. OSPF
D. EIGRP
How are
link-state routing updates triggered?
A. timers
B. topology
changes
B. By protocol
changes
D. By changing the
NIC
Which type of
route is used when no other routes are known to the destination?
A. tic
B. Default
C. Dynamic
D. Next available
How often are RIP
updates broadcast?
A. Every 15 seconds
C. Every 60 seconds
D. Every 90 seconds
metric is used in
RIP?
A. Bandwidth
B. Delay
C. Hop count
D. Traffic load
At which Layer of the OSI model would you classify the loss of
network connectivity due to a
loose patch cable?
A. Layer 7
B. Layer 5
C. Layer 3
D. Layer 1
At which Layer of
the OSI model would flow control problems exist?
A. Application
B. Presentation
C. Session
D. Transport
Which configuration register mode is
used to tell the router to boot from ROM monitor mode?
A. 0x---0
B. 0x---1
C. 0x---2
D. 0x---3
Which command can be used to check the boot field setting?
A. Router#
show version
B. Router# show
register
C. Router# show
running-config
D. Router# show
startup-config
Which of the
following is provided by the show version
command?
A. Information
about the interfaces
B. Information
about the routing protocol
C. Information
about the system image file
D. Information
about the default gateway
Which command is
used to tell the router to boot from ROM?
A. Router# boot
system rom
B. Router# boot
system rom IOS_filename
C. Router(config)#
boot system rom
D. Router(config)#
boot system rom IOS_filename
Which command is used to configure a routing protocol?
A. Router# rip
network 192.11.10.0
C. Router(config)#
routing rip
D. Router(config)#
routing protocol rip
Which step should be performed before copying software between the
TFTP host and Flash
memory?
A. Use the ping
command to check connectivity to the server
B. Check that you
can see and write into RAM memory
C. Verify that there
is sufficient room in RAM to accommodate the IOS
D. Check the
configuration file name and location on the network server
What provides sequencing of segments
with a forward reference acknowledgment, numbers
datagrams before transmission, and
reassembles the segments into a complete message?
A. Simple UDP
acknowledgment
B. Expectational
acknowledgments
D. Header checksums
and data protocol checksum
What is the function of ARP?
A. It is used to map
a known MAC address to an unknown IP address.
B. It is used to
develop a cached Layer 4 address resource table.
C. It is used to
map a known IP address to an unknown MAC address.
D. It sends a
broadcast message looking for the router IP address.
A router received a packet with a
destination address of 172.16.14.228. Assuming a subnet mask of
255.255.248.0, what is the subnet
network address for the destination host?
A. 172.16.1.0
B. 172.16.4.0
C. 172.16.8.0
D. 172.16.12.0
If you want to turn off the name-to-address translation in the
router, which command would you use?
A. no ip host
B. no ip address
C. no ip name-search
D. no ip domain-lookup
If a router has a serial interface S0,
with IP address 107.85.20.2, using a subnet mask of 255.255.255.240,
what is the broadcast address used for
hosts on this subnet?
A. 107.85.20.15
B. 107.85.20.255
C. 107.85.255.255
D. 107.255.255.255
Which best describes convergence?
A. When messages
simultaneously reach a router and a collision occurs
B When
several routers simultaneously route packets along the same path
C. When all routers
in an internetwork have the same knowledge of the structure and topology of the
internetwork
D. When several
messages are being sent to the same destination
Why are hold-down timers useful?
A. They help
prevent a router from immediately using an alternate route that includes the
failed route
B. They force all
routers in a segment to synchronize switching operations
C. They reduce the
amount of network traffic during high traffic periods
D. They provide a
mechanism for bypassing failed sections of the network
What will happen if routers have different sets of LSAs?
A. A check sum
procedure is initiated and faulty routing tables repaired.
B. Routes become
unreachable because routers disagree about a link.
C. A comparison is
forced and subsequent convergence on a single routing table occurs.
D. A broadcast
message is sent with the master copy of the routing table to all routers.
What best describes the difference between a routed protocol
versus a routing protocol?
A. Routed protocols
are used between routers to maintain tables while routing protocols are used to
carry user data.
B. Routed protocols
use distance vector algorithms while routing protocols use link-state
algorithms.
C. Routed
protocols are used to carry user data while routing protocols maintain tables.
D. Routed protocols
use dynamic addressing while routing protocols use static addressing.
Which metrics are commonly used by routers to evaluate a path?
A. EMI load, SDLC
connections, deterioration rate
C. Distance,
hub count, SN ratio
D. Signal count,
loss ratio, noise
If a new LAN is added to an internetwork, which command would add
the network to the routing table?
A. Router
(config)> ip route 2.0.0.0 255.0.0.0 via 1.0.0.2
C. Router (config)#
ip route 2.0.0.0 via 1.0.0.2
D. Router (config)#
ip route 2.0.0.0 1.0.0.2 using 255.0.0.0
What is the purpose of exterior routing protocols?
A. To transmit
between nodes on a network
B. To deliver
information within a single autonomous system
C. To communicate
between autonomous systems
D. To set up a
compatibility infrastructure between networks
Which command should display RIP routing updates as they are sent
and received?
A. Router# show ip
rip
B. Router# debug ip
protocols
D. Router# show ip
rip update
At which OSI Layer would an incorrect encapsulation type on a
serial interface be classified?
A. Layer 4
B. Layer 3
D. Layer 1
Which command
should identify destination network addresses and next hop pairs?
A. Router(config)#
show ip protocol
B. Router# show ip
table
D. Router(config-router)#
show ip table