Question 1

Discuss the difference between a hub and a switch.

Accepted Answer

One characteristic of a hub is that it broadcasts data received on one port to all other ports, essentially sending copies of data from one node to all other nodes on the LAN. In this way, each node on the network has an opportunity to see each packet of network data. A similar device called a switch learns where to send the data, eliminating a large majority of the broadcast traffic on the LAN. The switch also provides the Star topology.

Question 2

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

Accepted Answer

A) True 
 B)False  False

Question 3

A ____ is a portion of a network.

Accepted Answer

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

Question 4

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.

Accepted Answer

The answer of A(n) ____________________ network is owned and managed...

Question 5

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

Accepted Answer

The answer of A(n) ____________________ circuit is a prearranged path...

Question 6

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.

Accepted Answer

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

Question 7

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.

Accepted Answer

A) True 
 B)False

Question 8

Discuss subnetting.

Accepted Answer

Subnetting is a logical, not physical, a

Question 9

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

Accepted Answer

The answer of In terms of security and reliability, we...

Question 10

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

Accepted Answer

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

Question 11

Describe a private network.

Accepted Answer

A private network is owned and managed b

Question 12

A network that can be partitioned is secure and reliable.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

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

Question 15

Describe a hybrid network.

Accepted Answer

A hybrid network combines the components

Question 16

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

Accepted Answer

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

Question 17

Match between columns
                        Premises: Concerns the structure of the connections between the computers in a network
Logical connections between the nodes of the VPN
A graphical symbol used to describe a network without specifying the nature of the connections
Provide access to national and global network traffic
Has to do with the path a packet of data takes through the network

Accepted Answer

The Answer of Tunnels and Logical topology and Topology and is...

Question 18

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

Accepted Answer

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

Question 19

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.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

The answer of In a star network, all nodes connect...

Exam 2: Network Topology

Discuss the difference between a hub and a switch.

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

A ____ is a portion of a network.

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.

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

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.

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.

Discuss subnetting.

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

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

Describe a private network.

A network that can be partitioned is secure and reliable.

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

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

Describe a hybrid network.

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

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

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.

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

What Is a Computer Network

Networking Hardware

Ethernet Technology

Token-Ring, Fddi, and Other Lan Technologies

Network Design and Troubleshooting Scenarios

Low-Level Protocols

The Tcpip Protocols

Ipxspx, Appletalk, and Other Network Protocols

Switching and Routing

Network Management and Security

Electronic Mail

Ftp and Telnet

Multimedia Networking

The Internet

Writing a Network Application

An Introduction to Networking With Windows

Windows Domains

Unix and Linux

Other Network Operating Systems

Cryptography and Security

Security Hardware

Security Software

Forensic Techniques

Filters