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1 | |
A repeater is a connecting device that operates in the _______ layer of the Internet model. |
|
| | A) | physical |
| | B) | data link |
| | C) | network |
| | D) | all of the above |
|
2 | |
A _______ regenerates a signal, connects segments of a LAN, and has no filtering capability. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | none of the above |
|
3 | |
A _______ is a connecting device that operates in the physical and data link layers of the Internet model. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | none of the above |
|
4 | |
A ________ bridge can forward and filter frames and automatically build its forwarding table. |
|
| | A) | simple |
| | B) | dual |
| | C) | transparent |
| | D) | none of the above |
|
5 | |
A bridge can use the _________ algorithm to create a loopless topology. |
|
| | A) | binary tree |
| | B) | spanning tree |
| | C) | multiway tree |
| | D) | none of the above |
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6 | |
A _______ LAN allows several LANs to be connected. |
|
| | A) | backbone |
| | B) | wireless |
| | C) | wired |
| | D) | none of the above |
|
7 | |
A backbone is usually a ______. |
|
| | A) | bus |
| | B) | star |
| | C) | either (a) or (b) |
| | D) | neither (a) nor (b) |
|
8 | |
A virtual local area network (VLAN) is configured by _________. |
|
| | A) | software |
| | B) | physical wiring |
| | C) | hardware |
| | D) | none of the above |
|
9 | |
Membership in a VLAN can be based on _________. |
|
| | A) | port numbers |
| | B) | MAC addresses |
| | C) | IP addresses |
| | D) | all of the above |
|
10 | |
VLANs can_________. |
|
| | A) | reduce network traffic |
| | B) | provide an extra measure of security |
| | C) | either (a) or (b) |
| | D) | both (a) and (b) |
|
11 | |
_________ is just a connector. |
|
| | A) | An active hub |
| | B) | A passive hub |
| | C) | either (a) or (b) |
| | D) | neither (a) nor (b) |
|
12 | |
In a star-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is the collision point. |
|
| | A) | An active hub |
| | B) | A passive hub |
| | C) | either (a) or (b) |
| | D) | neither (a) nor (b) |
|
13 | |
________ is part of the media; its location in the Internet model is below the physical layer. |
|
| | A) | An active hub |
| | B) | A passive hub |
| | C) | either (a) or (b) |
| | D) | neither (a) nor (b) |
|
14 | |
A _______ is a device that operates only in the physical layer. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | bridge |
| | D) | router |
|
15 | |
A ________receives a signal and, before it becomes too weak or corrupted, regenerates the original bit pattern. It then sends the refreshed signal. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | bridge |
| | D) | router |
|
16 | |
A __________ forwards every frame; it has no filtering capability. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | bridge |
| | D) | router |
|
17 | |
________ is actually a multiport repeater. It is normally used to create connections between stations in a physical star topology. |
|
| | A) | An active hub |
| | B) | A passive hub |
| | C) | either (a) or (b) |
| | D) | neither (a) nor (b) |
|
18 | |
A ________ operates in both the physical and the data link layer. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | bridge |
| | D) | router |
|
19 | |
A _______ can check the MAC addresses contained in the frame. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | bridge |
| | D) | router |
|
20 | |
A ______ has a table used in filtering decisions. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | bridge |
| | D) | none of the above |
|
21 | |
A ________ is a device in which the stations are completely unaware of its existence. |
|
| | A) | passive hub |
| | B) | repeater |
| | C) | simple bridge |
| | D) | transparent bridge |
|
22 | |
IEEE 802.1d specification, defines _________ criteria for a transparent bridges. |
|
| | A) | two |
| | B) | three |
| | C) | four |
| | D) | none of the above |
|
23 | |
A spanning tree is a graph in which there is no _____. |
|
| | A) | node |
| | B) | branch |
| | C) | loop |
| | D) | arc |
|
24 | |
In a bridged LAN, the _______ algorithm creates a topology in which each LAN can be reached from any other LAN through one path only. |
|
| | A) | spanning tree |
| | B) | binary tree |
| | C) | unary tree |
| | D) | none of the above |
|
25 | |
A three-layer switch is a kind of ________. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | none of the above |
|
26 | |
A two-layer switch is a ______. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | none of the above |
|
27 | |
Some new two-layer switches, called _______ switches, have been designed to forward the frame as soon as they check the MAC addresses in the header of the frame. |
|
| | A) | cut-through |
| | B) | go-through |
| | C) | come-through |
| | D) | none of the above |
|
28 | |
A _______ is a three-layer device that handles packets based on their logical addresses. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | none of the above |
|
29 | |
A ______ normally connects LANs and WANs in the Internet and has a table that is used for making decisions about the route. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | none of the above |
|
30 | |
A ______ switch is a faster and more sophisticated router. |
|
| | A) | two-layer |
| | B) | three-layer |
| | C) | four-layer |
| | D) | none of the above |
|
31 | |
A ________ is normally a computer that operates in all five layers of the Internet model or seven layers of OSI model. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | gateway |
|
32 | |
A _____ can be used as a connecting device between two internetworks that use different models. |
|
| | A) | repeater |
| | B) | bridge |
| | C) | router |
| | D) | gateway |
|
33 | |
In a _____ backbone, the backbone is just one switch. |
|
| | A) | bus |
| | B) | ring |
| | C) | star |
| | D) | none of the above |
|
34 | |
A ________ link acts as a LAN in a remote backbone connected by remote bridges. |
|
| | A) | point-to-point |
| | B) | multipoint |
| | C) | multidrop |
| | D) | none of the above |
|
35 | |
VLANs create _________ domains. |
|
| | A) | unicast |
| | B) | multicast |
| | C) | broadcast |
| | D) | none of the above |
|
36 | |
In a(n) _______ configuration, the administrator types the port numbers, the IP addresses, or other characteristics, using the VLAN software. |
|
| | A) | manual |
| | B) | automatic |
| | C) | semiautomatic |
| | D) | none of the above |
|
37 | |
In a(n) _____ configuration, the stations are automatically connected or disconnected from a VLAN using criteria defined by the administrator. |
|
| | A) | manual |
| | B) | automatic |
| | C) | semiautomatic |
| | D) | none of the above |
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38 | |
In a(n) ______ configuration, the initializing is done manually, with migrations done automatically. |
|
| | A) | manual |
| | B) | automatic |
| | C) | semiautomatic |
| | D) | none of the above |