An idle DDR connection will be torn down after _________ seconds of not seeing interesting traffic.
120
122
130
132
Correct Answer :
A. 120
Related Questions
A VTP server switch generates a summary advertisement every _________ minutes.
1
2
3
5
________ topologies in NBMA environments do not have problems with split horizon.
Partially meshed
Fully meshed
Hub and spoke
Star
The ___________ is the point where the carrier's responsibility ends and yours begins.
Local loop
Demarcation point
CPE
Toll network
Which of the following are not features of ACLs?
Restricting telnet access to a router
Prioritizing WAN traffic
Filtering traffic from the router
Triggering dialup phone calls
Which would you use to move your cursor back one word?
ESC-B
esc-p
ctrl-b
ctrl-p
A ___________ is basically all of the components, hardware and software, involved
in connecting computers across small and large distances.
LAN
WAN
Network
SAN
The 1900 switch supports ________ VLANs.
10
32
64
250
A _________ provides a high-speed infrastructure to move data between storage devices and file servers.
SAN
LAN
CN
SAN and CN
If you wanted a list of parameters for the show command, you would type ________.
LOOK
VIEW
SHOW
A routing protocol that supports route summarization must perform all except which of the following?
Carry the subnet mask with the network entry.
Make routing decisions based on the entire destination IP address.
Summarize entries so that the same lowest-order bits match.
None of these.
A _________ routes between different autonomous systems.
BPG
EGP
IPP
IGP
You have a 24-channel T1 connection to your router. How many VCs does this T1 support?
1
24
No limit
Which of the following is true concerning ISL?
It is supported on both the 1900 and 2950 switches.
It adds a 26-byte trailer and 4-byte header.
Tagging is done in software.
The original Ethernet frame is not modified.
Which interface type is used to connect to the serial interface of a router?
EIA/TIA-232
V.35
DB-60
X.21
The _______ program goes out and finds the IOS and loads it.
ROMMON
Bootstrap
Mini-IOS
Loader
Which command assigns a default gateway to the 2950 switch?
(config)# default-gateway
(config-if)# default-gateway
(config-if)# ip default-gateway
(config)# ip default-gateway
You are given a class C network and you have four LAN segments with the following numbers of devices: 120, 60, and two with 30. What subnet mask values would you use to accommodate these segments?
/24, /25, and /26
/25, /26, and /27
/26, /27, and /28
None of these
Cisco routers generate LMI enquiries every _______ seconds and a full status update every _________ seconds.
10, 60
10, 6
60, 300
15, 60
A ________ topology describes how devices communicate with each other.
Physical
Logical
What would you use to prevent a packet from traveling around a routing loop forever?
Split horizon
Poison reverse
Hold-down timer
TTL
RIP has a hold-down period of ____________ seconds.
60
120
180
280
Which of the following is true concerning bridges?
They switch frames in hardware.
They support half- and full-duplexing.
They support one collision domain for the entire bridge.
They do only store-and-forward switching.
_________ describe(s) users that can connect to a network from any location.
SOHO
Branch office
Mobile users
Corporate office
What uses 64 Kbps of bandwidth?
PRI
BRI
DS1
DS0
A Class A address has _________ host bits.
8
16
20
24
You are in Interface Subconfiguration mode and want to completely return to Privilege EXEC mode. What would you enter? (Choose all correct answers.)
CTRL-Z
end
exit
logout
The address of a Frame Relay VC is called a ___________.
Data link layer connection identifier
Data layer connection index
Data link connection index
Data link connection identifier
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 the most expensive type of WAN connection?
Dedicated circuit connection
Circuit-switched connection
Packet-switched connection
When connecting a router to a PC, use a __________ cable.
Crossover
Straight-through
Rollover