Mid-Term

Front 1

A network that has locations in different countries is considered a WAN.

Back 1

True
[page 28]

Front 2

In order to find out your MAC address, you should open a command prompt and type ipconfig /all.

Back 2

True
[page 23]

Front 3

What makes a computer a "server" is the fact that it has a server operating system installed on it.

Back 3

True
[page 33]

Front 4

Routers do not forward broadcast packets.

Back 4

True
[page 90]

Front 5

If a router receives a packet and it does not have an entry in its routing table for the destination network, it will send the packet to its default route, if configured.

Back 5

True
[page 95]

Front 6

The function of a repeater is to extend the range of an existing network

Back 6

True
[page 62]

Front 7

You cannot connect a hub to another hub unless it has an uplink port.

Back 7

False
[page 66]

Front 8

The XYZ company has two offices,one downtown, and a brand new office in the newer section of town. To connect the two offices, they will need a dedicated line, probably leased from the local phone company. What type of network will they be implementing to connect their two offices?

Back 8

MAN
[page 28]

Front 9

What is one of the disadvantages of a peer-to-peer network compared to a server-based network?

Back 9

Limited security
[page 35]

Front 10

What is one of the disadvantages of a server-based network compared to a peer-to-peer network?

Back 10

additional costs
[page 37]

Front 11

For any device to communicate with the compter, either through input or output, it must have what special software installed?

Back 11

device driver
[page 13]

Front 12

When data is being prepared for transmission onto the network, it is broken into small pieces and a header and trailer are added to each piece to help identify it. What is this process called?

Back 12

Encapsulation
[page 32]

Front 13

Every NIC is embedded with a unique address that consists of a 12-digit hexadecimal value. What is this address called?

Back 13

MAC Address
[page 23]

Front 14

What was the primary reason to create a network?

Back 14

Share rources, communicate with e-mail, share information. (All the above)
[page 14]

Front 15

You are the network administrator for a company and you want to separate the traffic from the accounting department from the rest of the network. However, the accounting department still needs to have access to other network resources. What type of network do you need to implement?

Back 15

internetwork
[page 26]

Front 16

Which part of the network communication process is responsible for sending and receiving data to and from the network media?

Back 16

NIC Driver
[page 17]

Front 17

You're the network administrator for a company located in Arizona that has just opened an office in Texas. You need to make sure that the two locations can communicate. What type of network are you implementing?

Back 17

WAN
[page 28]

Front 18

You have just started a new business. You need to have three to four workstations available for your employees who simply need share some files and a printer, but you don't have a large budget. Security is not a major concern, but costs are. What type of network would be the most appropriate for your situation?

Back 18

peer-to-peer network
[page 34-36]

Front 19

When a frame is received, which component reads the source and destination MAC addresses, looks up the destination to determinewhere to send the frame, and forwards it out the correct port?

Back 19

switch
[page 67]

Front 20

Why would yo need to use a repeater?

Back 20

You need to add a group of computers to your network, and the distance is too far for normal means of communication.
[page 63]

Front 21

Which of the following is NOT a function of a hub?

Back 21

transmits the signal to the correct port
[page 64]

Front 22

Why is the use of a switch preferred over a hub?

Back 22

Devices on a hub have to share the available bandwidth. Switches are intelligent; the read the frame and determine where to send it. Switches can operate in full-duplex mode. (All of the above)
[page 66-68]

Front 23

What does a switch store in its switching table?

Back 23

The source MAC address of a frame and the port it was received on.
[page 67]

Front 24

Just as a switch keeps records of MAC addresses that it has learned, so does your computer. What protocol does your computer use to learn MAC addresses?

Back 24

ARP
[page 74]

Front 25

What does it usually mean when the activity light on a switch is blinking?

Back 25

It is commnicating with the network.
[page 76]

Front 26

What component of the computer provides it with a MAC address?

Back 26

NIC
[page 80]

Front 27

A wireless access point is most like which other network device, in that all computers send signals through it to communicate with other computers?

Back 27

Hub
[page 77]

Front 28

When referring to network bandwidth, what is the basic unit of measurement?

Back 28

bits per second
[page 64]

Front 29

The SSID is configured on which of the following so that it can be distinguished from other available wireless networks?

Back 29

access point
[page 84]

Front 30

What command would you issue from the command prompt to test whether your computer has connectivity to the network?

Back 30

ping IP address
[page 73]

Front 31

There are two basic categories of physical cabling used in Ethernet networks. They are copper wire and fiber optic.

Back 31

True
[page 164]

Front 32

The length of cable between the wall jack and a patch panel is called vertical cabling.

Back 32

False
[page 174]

Front 33

Wireless and wired networkd are both susceptible to RFI.

Back 33

True
[page 165]

Front 34

Because fiber-optic cabling uses light pulses instead of electrical signals, it is immune to interference and highly resistant to eavesdropping.

Back 34

True
[page 184]

Front 35

Wireless networks are often used to extend the reach of a wired LAN.

Back 35

True
[page 188]

Front 36

A netowork's physical topology refers to the arrangement of the cabling and how the the devices connect to each other.

Back 36

True
[page 110]

Front 37

The physical bus topology is no longer used because it required extra cable to connect all the computers and required a central device.

Back 37

False
[page 112]

Front 38

A point-to-point topology is typically used for WAN connections.

Back 38

True
[page 116]

Front 39

A network's logical topology often depends on the central device's electronics.

Back 39

True
[page 119]

Front 40

A collision can occur on a switch is operating in full-duplex mode.

Back 40

False
[page 127]

Front 41

Which of the following is not one of the main differences between the types of networking cabling?

Back 41

the ability to send and receive signals
[page 164]

Front 42

When a signal travels across network medium, it signal loses strength the further it gets from the transmitting station, to the point where the receiving station can no longer interpret the signals correctly. What is the term for this phenomenon?

Back 42

attenuation
[page 165]

Front 43

What is the maximum bandwidth for a network cabled using category 5e UTP cable?

Back 43

1000 Mbps
[page 170]

Front 44

The frequency at which a wireless network operates is measured in cycles per second and is expressed as what unit of measurement?

Back 44

hertz
[page 190]

Front 45

Terrestrial and satellite systems are two types of which wireless networking technology?

Back 45

microwave
[page 195]

Front 46

What is the way in which bit signals are represented on the network medium?

Back 46

encoding
[page 164]

Front 47

What is the term used that defines network cabling in the work area and between telecommunications closts and equipment rooms?

Back 47

structured cabling
[page 173]

Front 48

What type of wiring should be used for a high-speed connection between two buildings?

Back 48

fiber-optic cabling
[page 184]

Front 49

What is a disadvantage of using fiber-optic cabling?

Back 49

difficult to install
[page 185]

Front 50

What type of wireless technology is used for 802.11b/g/n networks?

Back 50

spread-spectrum radio
[page 193]

Front 51

Which of the following is NOT an advantage of a physical star?

Back 51

provides redundacy and fault tolerance
[page 112]

Front 52

Which of the following is the physical topology that is daisy-chained like a bus and in which the cabling is brought around from the last device to the first device?

Back 52

physical ring
[page 115]

Front 53

What is the main advantage of a point-to-point topology?

Back 53

data travels on a dedicated link
[page 116]

Front 54

What is the most common topology and technology combination in use today?

Back 54

switched/ Ethernet
[page 118]

Front 55

What does the frame trailer consist of in an Ethernet frame?

Back 55

cyclic redundancy check
[page 126]

Front 56

What is the best way to eliminate the possibility of collisions in a network?

Back 56

Only use switches. Use NICs that operate in full-duplex mode. (Both a and c)
[page 127]

Front 57

When using UTP cabling, what is the maximum cable length that can be used from the NIC to a hub or switch?

Back 57

100 meters
[page 122]

Front 58

What is the IEEE standard governing wireless networking?

Back 58

802.11
[page 137]

Front 59

When a wireless computer uses a peer-to-peer connection to directly connect to another wireless computer, it is operating in what mode?

Back 59

ad hoc
[page 138]

Front 60

In wireless networks, what type of media access control is used?

Back 60

CSMA/CA
[page 140-141]

Front 61

IPX/SPX is considered the protocol suite of the Internet, and it is the most widely used protocol suite in LANs.

Back 61

False
[page 208]

Front 62

The Internetwork layer is the layer that handles network configuration and is considered the heart of the TCP/IP protocol suite.

Back 62

True
[page 213]

Front 63

The Transport layer uses port numbers to identify the source and destination Application-layer protocol of the data that it contains.

Back 63

True
[page 223]

Front 64

DNS is a protocol that automatically provides a computer with its IP address configuration.

Back 64

False
[page 227-228]

Front 65

An IP address is composed of 48 bits that are grouped together into 8-bit octets and are represented by a decimal number from 0 to 255

Back 65

False
[page 232]

Front 66

The Transport layer is the same in both the OSI model and the TCP/IP model.

Back 66

True
[page 265]

Front 67

The Physical layer has been divided into two sublayers, called the LLC sublayer and the MAC sublayer.

Back 67

False
[page 278]

Front 68

The Network layer communicates with the Data Link layer and the Session layer.

Back 68

False
[page 265]

Front 69

One of the problems that can occur in the Network layer is the incorrect configuration of a hosts IP address

Back 69

True
[page 272]

Front 70

The Transport layer deals with which unit of information?

Back 70

Segment
[page 209]

Front 71

Which of the following is not a function of the Network Access layer?

Back 71

delivers packets efficiently
[page 213]

Front 72

In what layer does the NIC operate?

Back 72

Network Access
[page 210]

Front 73

In which layer does a router operate?

Back 73

Internetwork
[page 214]

Front 74

Which protocol is responsible for determining the MAC address associated with each IP address and keeping a table of its results?

Back 74

ARP
[page 216]

Front 75

TCP establishes a connection with the destination device using which process?

Back 75

Three-way handshake
[page 224]

Front 76

An IP address consists of four octets separated by periods. Which part of this address denotes its class?

Back 76

first octet
[page 232]

Front 77

What is the binary number system based on?

Back 77

powers of 2
[page 240]

Front 78

What is the decimal equivalent to the binary number 11000001?

Back 78

193
[page 239-242]

Front 79

How many bits are in an IPv6 address?

Back 79

128
[page 248]

Front 80

Which layer is responsible for establishing a connection between the source and destination?

Back 80

Session
[page 270]

Front 81

Which layer of the OSI model is responsible for encryption and decryption?

Back 81

Presentation
[page 269]

Front 82

Put the layers of the OSI model in order from layer 7 to layer 1.

Back 82

7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link
1. Physical
[page 265]

Front 83

What is a PDU?

Back 83

It is the name given to the unit of information used by each layer.
[page 268]

Front 84

At each layer of the OSI model, data is appended to the original message and then sent on to the next lower layer. What is this process called?

Back 84

encapsulation
[page 268]

Front 85

What does the Transport layer use to make sure that a message is reassembled correctly on the receiving device?

Back 85

sequence number
[page 271]

Front 86

Which is the IEEE standard that sets the standards for wireless networking?

Back 86

802.11
[page 277]

Front 87

One job that a router performs is that of gatekeeper, which means that it can be configured to only allow certain packets access into the network based on a list of rules. What is that process called?

Back 87

access control
[page 272]

Front 88

You are working at the help desk and you get a message that a user cannot access the Internet. You open a command prompt, ping the workstation’s IP address, and get a response. You ask the user to try the Internet again. He does so with the same result— no connection. Which type of device is most likely to be the problem?

Back 88

Network layer device
[page 272]

Front 89

Which layer has been subdivided into the Logical Link Control sblayer and the Media Access Control sublayer?

Back 89

Data link
[page 278]

Front 90

Which layer is responsible for the encoding of signals?

Back 90

1
[page 274]