Which is not one of the three main functions of a layer-2 device?
Learning
Forwarding
Listening
Removing loops
Correct Answer :
C. Listening
Related Questions
Which Frame Relay command is used to manually resolve addresses?
frame-relay interface-dlci
frame-relay map
frame-relay resolve
frame-relay lmi-type
Which prompt indicates that you are at User EXEC mode?
>
#
%
@
When a carrier experiences congestion, it marks the _______ bit in the header of the Frame Relay frame.
CIR
DE
BECN
FECN
Annex A is which LMI standard?
Cisco
ITU-T Q.933
ANSI
Frames sent above the __________ limit will have their _________ bit set.
CIR, DE
BC, DE
BC, FECN
CIR, FECN
Which command defines interesting traffic?
dialer-group
dialer-list
dialer map
dialer remote-name
You examine your interfaces, and the Ethernet 0 interface status says: Ethernet 0 is up, line protocol is down. What does this indicate?
There is a physical layer problem.
There is a data link layer problem.
There is a network layer problem.
There is no problem.
A VTP server switch generates a summary advertisement every _________ minutes.
1
2
3
5
You are given a Class B network with a subnet mask of 255.255.255.192. How many host
addresses are there on each subnet?
30
62
126
254
You are given the following addressing information: 192.168.37.192/25. What type of address is this?
Network
Directed Broadcast
Host
Cisco routers generate LMI enquiries every _______ seconds and a full status update every _________ seconds.
10, 60
10, 6
60, 300
15, 60
The 1900 switch supports ________ VLANs.
10
32
64
250
If you enter a command in either User EXEC mode or Privilege EXEC mode that the IOS does not recognize, the switch or router
Logs you out
Tries to resolve the command to an IP address
Executes the closest command that it can find in its command set
Makes a "beep" sound
Which is an example of a hybrid protocol?
IGRP
EIGRP
RIPv1
OSPF
A ________ topology describes how devices communicate with each other.
Physical
Logical
When examining the IP routing table, an EIGRP route will be shown as what letter?
I
E
O
D
The TCP/IP protocol stack has ________ layers.
4
5
6
7
How many steps do LCP and NCP go through when setting up a connection?
1
2
3
4
The root switch is the one elected with the __________ __________.
Lowest MAC address
Highest MAC address
Lowest switch ID
Highest switch ID
Which of the following is a valid subnet mask value?
255.0.255.255
0.0.0.255
255.255.254.0
255.255.255.256
Which types of memory do not maintain their contents during a power-off state?
NVRAM
ROM
RAM
Flash
Which command activates an IP ACL on a router's interface?
access-list
ip access-group
access-class
access-group
If the 1900's mode is FDUP, and the LED is _________, the port speed is set to autodetect.
Green
Off
Amber
None of these
OSPF uses __________ as a metric.
Bandwidth
Delay
Cost
Hop count
You have a 24-channel T1 connection to your router. How many VCs does this T1 support?
1
24
No limit
Choose the following that a standard IP ACL can match on.
Destination address
IP protocol
IP protocol information
None of the above
You are given the following addressing information: 172.17.16.255/23. What type of address is this?
Network
Directed Broadcast
Host
Which of the following is a Network layer protocol for the TCP/IP protocol stack?
TCP
UDP
ICMP
None of these
Which of the following is a disadvantage of SANs?
Distance limitation
Cost
Overhead
Management
Which IGRP command allows unequal-cost load balancing?
variance
load
balance
network