EXAMEN
11
Question
1:
Which
OSI Layer is responsible for path determination?
A. 1
B. 2
D. 4
Question
2:
Which
part(s) of an IP address is used by the router for path determination?
B. Network
and client
C. Network,
subnetwork, and host
D. Network,
subnetwork, host, and subnet mask
Question
3:
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.
Question
4:
What
is one advantage of dynamic routing?
A. Takes
little network overhead and reduces network overhead traffic
B. Reduces
unauthorized break-ins as security is tight
D. Requires
very little bandwidth to operate efficiently
Question
5:
What
is one disadvantage of static routing?
A. Requires a name server on each network
B. Routing of data stops while routers exchange
routing tables
C. The network administrator must manually
update the routing table whenever a topology change occurs
D. Tends to reveal everything known about an
internetwork
Question
6:
What
is one disadvantage of dynamic routing?
A. Requires
lots of active network administrator management
D. Cannot
compensate for network failures so crashes can be a recurring problem
Question
7:
What
is a network with only one path to a router called?
A. Static
network
B. Dynamic
network
C. Entity
network
Question
8:
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
Question
9:
Which
metric measures the passage of a data packet through a router?
A. Exchange
C.
Transmittal
D. Signaling
Question
10:
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
Question
11: *************************************
What
do distance vector algorithms require of routers?
A. Default
routes for major internetwork nodes in case of corrupted routing tables
B.
Periodically send its routing table to its neighbors
C. Fast
response times and ample memory
Question
12:
Which
routers exchange information when using a distance-vector routing protocol?
A. All
B. All in
network
C. All in
subnetwork
Question
13: ************************
Which
term describes the situation where packets never reach their destination but
instead cycle repeatedly through the same group of network nodes?
A. Split
horizon
B. End to
end messaging
C.
Convergence
D. Routing
loop
Question
14:
How
can the count to infinity problem be prevented?
A. By using
routing loops
B. By
defining a minimum hop count
C. By
increasing router memory
Question
15:
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
Question
16:
Which
routing protocol maintains a complex database of topology information and uses
link-state advertisements (LSAs)?
A. RIP
B. IGRP
D. EIGRP
Question
17: *****************************
Which
best describes link-state algorithms?
A. Enables each router to know the exact
topology of the entire participating internetwork.
B. Requires minimal router CPU utilization.
C. Determines distance, direction and
reliability to any link on the internetwork.
D. Uses little network overhead and reduces
overall traffic.
Question
18: ***********************
Which
protocol is a link-state routing protocol?
C. RIP
D. IGRP
Question
19:
How
are link-state routing updates triggered?
A. By timers
C. By
protocol changes
D. By
changing the NIC
Question
20:
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.
Question
21:
Which
protocol is a hybrid routing protocol?
B. OSPF
C. RIP
D. IGRP
Question
22:
What
does a router use to identify the destination network (LAN) of a packet within
an internetwork?
A. MAC
address
B. Port
address
C. SPX
address
Question
23:
Which
kind of route is set when the next hop is not explicitly listed in the routing
table?
C. Passive
D.
Incremental
Question
24:
Information
regarding routes has been received on a router through interface A. Which
routing technique will prevent this information from exiting on the router
through the same interface A?
A. Dynamic
routing
C. Static
routing
D. Hold down
timers