Deck 2: Network Topology

Question 1

The connections for the ____ of a network may be provided through dedicated phone lines, twisted pair cable, fiber optic cable line-of-sight microwave RF, ATM, or other form of electronic connection.

A) physical topology
B) virtual topology
C) physical infrastructure
D) virtual interconnection

Answer 1

A

Question 2

Companies that connect to a NAP enter into ____ agreements with each other that allow them to exchange traffic.

A) posting
B) partner
C) peering
D) polling

Answer 2

C

Question 3

The network cloud may comprise only the network found in a small laboratory, or it may represent an entire wide area network (WAN) such as the Internet.

Answer 3

True

Question 4

A ____ uses public network connections to establish private communication by encrypting the data transmitted between the two computers at each end of the connection.

A) NPV
B) VN
C) PVN
D) VPN

Question 5

A ____ is a portion of a network.

A) subnet
B) subunit
C) slice
D) subdivision

Question 6

____________________ is a logical, not physical, activity and is accomplished using a special subnet mask, such as 255.255.255.192.

Question 7

Token-ring networks, although logically viewed as rings, are connected using central ____.

A) media access units
B) multistation access units
C) station access units
D) access units

Question 8

Even if the encrypted traffic is intercepted, chances are very small that the contents can be decrypted if a suitably strong encryption method and key are used.

Question 9

In a bus network, if two or more nodes transmit data at the same time, a ____ occurs.

A) collision
B) compression
C) collusion
D) contention

Question 10

A(n) ____________________ network is owned and managed by a private organization or company and may have a much larger bandwidth capability than a public network.

Question 11

In a fully connected network, the number of connections at each node equals the total number of nodes plus one.

Question 12

A(n) ____________________ circuit is a prearranged path through the network that all packets will travel for a particular session between machines.

Question 13

With certain types of network communications, it is possible that duplicate packets of data are generated if an acknowledgement is not received by the source computer.

Question 14

In terms of security and reliability, we must concern ourselves with what is required to ____________________ our network.

Question 15

A ____ network uses a single shared common communication media that all nodes tap into.

A) ring
B) star
C) bus
D) string

Question 16

Seven fully connected nodes require ____ links.

A) 14
B) 21
C) 28
D) 35

Question 17

A(n) ____ is a 32-bit number used to locate and identify nodes on the Internet.

A) MAC address
B) TCP address
C) Ethernet address
D) IP address

Question 18

When a large amount of data must be sent between machines on a network, it is possible to set up a ____ between the machines.

A) permanent circuit
B) virtual circuit
C) virtual interface
D) physical interface

Question 19

In a star network, all nodes connect to a central communications ____________________.

Question 20

A network that can be partitioned is secure and reliable.

Question 22

Describe a private network.

Question 23

Describe a mesh network.

Question 24

Discuss subnetting.

Question 25

Describe a hybrid network.

Question 26

Discuss the difference between a hub and a switch.