Chapter 14 Quiz

1		A static table is one _______.
			A)	with manual entries
			B)	which is updated automatically
			C)	either a or b
			D)	none of the above
2		A dynamic table is one _______.
			A)	with manual entries
			B)	which is updated automatically
			C)	either a or b
			D)	none of the above
3		For purposes of routing, the Internet is divided into ___________.
			A)	wide area networks
			B)	autonomous networks
			C)	autonomous systems
			D)	none of the above
4		____________ is a group of networks and routers under the authority of a single administration.
			A)	An autonomous system
			B)	An area
			C)	a and b
			D)	none of the above
5		Routing inside an autonomous system is referred to as _______________.
			A)	interdomain routing
			B)	intradomain routing
			C)	both a and b
			D)	none of the above
6		Routing between autonomous systems is referred to as ____________.
			A)	interdomain routing
			B)	intradomain routing
			C)	both a and b
			D)	none of the above
7		In _______ routing, the least cost route between any two nodes is the route with the minimum distance.
			A)	path vector
			B)	distance vector
			C)	link state
			D)	none of the above
8		In ________, each node maintains a vector (table) of minimum distances to every node.
			A)	path vector
			B)	distance vector
			C)	link state
			D)	none of the above
9		In distance vector routing, each node periodically shares its routing table with _________ and whenever there is a change.
			A)	every other node
			B)	its immediate neighbors
			C)	one neighbor
			D)	none of the above
10		The Routing Information Protocol (RIP) is an intradomain routing based on _________ routing.
			A)	distance vector
			B)	link state
			C)	path vector
			D)	none of the above
11		The metric used by _______ is the hop count.
			A)	OSPF
			B)	RIP
			C)	BGP
			D)	none of the above
12		In RIP, the ________ timer controls the advertising of regular update messages.
			A)	garbage collection
			B)	expiration
			C)	periodic
			D)	none of the above
13		In RIP, the ________ timer is used to purge invalid routes from the table.
			A)	garbage collection
			B)	expiration
			C)	periodic
			D)	none of the above
14		In RIP, the ________ timer controls the validity of the route.
			A)	garbage collection
			B)	expiration
			C)	periodic
			D)	none of the above
15		RIP uses the services of _______.
			A)	TCP
			B)	UDP
			C)	IP
			D)	none of the above
16		The _________ routing uses the Dijkstra algorithm to build a routing table.
			A)	distance vector
			B)	link state
			C)	path vector
			D)	none of the above
17		The Open Shortest Path First (OSPF) protocol is an intradomain routing protocol based on _______ routing.
			A)	distance vector
			B)	link state
			C)	path vector
			D)	none of the above
18		The _______ protocol allows the administrator to assign a cost, called the metric, to each route.
			A)	OSPF
			B)	RIP
			C)	BGP
			D)	none of the above
19		In OSPF, a ________ link connects two routers without any other host or router in between.
			A)	point-to-point
			B)	transient
			C)	stub
			D)	none of the above
20		In OSPF, a _______ link is a network with several routers attached to it.
			A)	point-to-point
			B)	transient
			C)	stub
			D)	none of the above
21		In OSPF, a ________ link is a network is connected to only one router.
			A)	point-to-point
			B)	transient
			C)	stub
			D)	none of the above
22		In OSPF, when the link between two routers is broken, the administration may create a _________ link between them using a longer path that probably goes through several routers.
			A)	point-to-point
			B)	transient
			C)	stub
			D)	none of the above
23		In OSPF, a ________ defines the links of a true router.
			A)	network link
			B)	router link
			C)	summary link to network
			D)	none of the above
24		In OSPF, a ________ defines the links of a network.
			A)	network link
			B)	router link
			C)	summary link to network
			D)	none of the above
25		In OSPF, an area border router advertises a ____________ LSA.
			A)	network link
			B)	router link
			C)	summary link to network
			D)	none of the above
26		OSPF uses the _______ message to create neighborhood relationships and to test the reachability of neighbors.
			A)	link state request
			B)	database description
			C)	link state update
			D)	none of the above
27		In OSPF, the ________ message does not contain complete database information; it only gives an outline, the title of each line in the database.
			A)	link state request
			B)	database description
			C)	link state update
			D)	none of the above
28		In OSPF, a _________ message is sent by a router that needs information about a specific route or routes.
			A)	link state request
			B)	database description
			C)	link state update
			D)	none of the above
29		In ________ routing, we assume that there is one node (or more) in each autonomous system that acts on behalf of the entire autonomous system.
			A)	distant vector
			B)	path vector
			C)	link state
			D)	none of the above
30		___________ is an interdomain routing protocol using path vector routing.
			A)	BGP
			B)	RIP
			C)	OSPF
			D)	none of the above
31		BGP can have two types of sessions: _______ and ________ sessions.
			A)	E-BGP; A-BGP
			B)	I-BGP; C-BGP
			C)	E-BGP; I-BGP
			D)	none of the above
32		To create a neighborhood relationship, a router running BGP sends an ________ message.
			A)	open
			B)	update
			C)	keepalive
			D)	none of the above
33		In BGP, the _______ message is used by a router to withdraw destinations that have been advertised previously, or to announce a route to a new destination, or both.
			A)	open
			B)	update
			C)	keepalive
			D)	none of the above
34		The routers running the BGP protocols exchange _______ messages regularly to tell each other that they are alive.
			A)	open
			B)	update
			C)	keepalive
			D)	none of the above
35		In BGP, a _______ message is sent by a router whenever an error condition is detected or a router wants to close the connection.
			A)	open
			B)	update
			C)	keepalive
			D)	none of the above
36		BGP messages are encapsulated in _______.
			A)	TCP segments
			B)	UDP user datagrams
			C)	IP datagrams
			D)	none of the above
37		An area is _______.
			A)	part of an AS
			B)	composed of at least two ASs
			C)	another term for an AS
			D)	none of the above