Information Technology Reference
In-Depth Information
7.
B. OSPF has an administrative distance of 110. EIGRP has an administrative distance
of 90. The route with the lower administrative distance is selected: EIGRP.
8.
D. EIGRP, RIPv2, IS-IS, and OSPF are all classless routing protocols.
9.
B. The default metrics for EIGRP are bandwidth and delay.
10.
C. EIGRP implements DUAL.
Q&A
1.
False. Distance-vector routing protocols send periodic routing updates.
2.
False. RIPng is used with IPv6 networks.
3.
Tr ue
4.
Tr ue. The higher value for reliabilit y is prefer red.
5.
False. The link with the lower load is preferred.
6.
The EIGRP route. EIGRP routes have an administrative distance of 90, and OSPF
routes have an administrative distance of 100. The lower administrative distance is pre-
fer red.
7.
The IS-IS route. IS-IS routes have an administrative distance of 115, and RIP routes
have an administrative distance of 120. The lower administrative distance is preferred.
8.
The OSPF route, because it has a more specific route.
9.
A. The best reliability is 255/255 (100 percent), and the best load is 1/255 (~0 percent).
10.
G. IS-IS and OSPF permit an explicit hierarchical topology.
11.
Delay measures the amount of time a packet takes to travel from one end to another in
the internetwork.
12.
The metric is 10
8
/BW. If BW = 100 Mb/s = 10
8
, the metric = 10
8
/10
8
= 1.
13.
i = C, ii = A, iii = D, iv = B
14.
Tr ue
15.
B, D, E, and F
16.
B. OSPFv3 is the only standards-based routing protocol in the list that supports large
networks. RIPng has limited scalability.
17.
C, D, and E. Link-state routing protocols plus EIGRP's hybrid characteristics converge
faster.
18.
C. EIGRP supports large networks and does not require a hierarchical network.
19.
B, C, D, and E. RIPv1 does not support VLSMs.
20.
F. B G P i s u s e d t o c o n n e c t t o I S P s .
21.
C. EIGRP is supported only on Cisco routers.
