Networking Chapter 7

________ is a hybrid version of Ethernet that uses either 10Base-T or 100Base-T. a. Mullion Ethernet b. Base-T Ethernet c. 10/100 Ethernet d. Token ring Ethernet e. FDDI Ethernet

10/100 Ethernet

IEEE 802.11ac runs on which of the following two different frequency spectrums simultaneously? a. 2.4GHz and 5GHz b. 24GHz and 5GHz c. 11GHz and 54GHz d. 8GHz and 11GHz e. 2.4GHz and 11GHz

2.4GHz and 5GHz

How many channels does 802.11g provide for communication with clients, a. 20 b. 12 c. 10 d. 3 e. 8

3

The maximum data rate of a an 802.11ad WLAN is a. 24 Mbps b. 36 Mbps c. 11 Mbps d. 54 Mbps e. 9 Mbps

54 Mbps

The maximum data rate of an 802.11g WLAN is a. 24 Mbps b. 36 Mbps c. 11 Mbps d. 54 Mbps e. 9 Mbps

54 Mbps

How many channels does the 802.11ac standard provide for communication between the access point and clients? a. 4 b. 6 c. 8 d. 11 e. 2

8

802.11g is backward compatible with which type of LAN? a. 802.11a b. 802.11b c. 802.15 d. 802.3 e. 802.5

802.11b

The IEEE designation for the type of wireless standard that uses both the 2.4 and 5 GHz range is __________. a. 802.11n b. 802.11a c. 802.3 d. 802.11b e. 802.11g

802.11n

Which of the following standards is backward compatible with IEEE802.11a, b, and g? a. 802.11a b. 802.11b c. 802.11g d. 802.11n e. 802.15

802.11n

Which of the following is not a WLAN standard? a. 802.11ac b. 802.11a c. 802.3 d. 802.11b e. 802.11g

802.3

CSMA/CA is an acronym for: a. Carrier Sense Multiple Access with Collision Acknowledgment b. Carrier Sense Mode Access with Carrier Avoidance c. Carrier Sense Multiple Access with Collision Avoidance d. Carrier Sensory Multiple Access without Collision Acknowledgment e. Carrier Sense Multiple Acknowledgment with Collision Avoidance

Carrier Sense Multiple Access with Collision Avoidance

Ethernet LAN was developed by: a. IBM b. ARPANET c. DEC, Xerox, and Intel d. University of Minnesota e. CERN laboratory in Geneva

DEC, Xerox, and Intel

_____________ provide information about resources on the network that are available to the users, such as shared printers, file servers and application software. a. Network Services b. Directory Services c. Client Services d. Computing Services e. Remote Access Services

Directory Services

__________ is not true with respect to network hubs. a. Each port in a hub has a unique number. b. A good network plan includes hubs in areas, such as a telecommunications wiring closet, in which a network may expand c. Simple hubs are commonly available in 4-, 8-, 16-, and 24-port sizes d. Many hubs act as repeaters or amplifiers e. Hubs provide a complicated way to connect network cables

Hubs provide a complicated way to connect network cables

WiGig is standardized as a. IEEE 802.11ad b. IEEE 802.11ac c. IEEE 802.11n d. IEEE 802.11g e. IEEE 802.11a

IEEE 802.11ad

Which of the following is not true about 10/100 Ethernet? a. It is not a hybrid type of Ethernet. b. It provides flexibility for organizations that want to use both the 10Base-T and 100Base-T standards at the same time. c. 10/100 autosense hubs (and/or switches) are able to detect the signal transmitted by the client's NIC and use 10 Mbps or 100 Mbps, depending on what the client uses. d. Depending upon how it is configured, a 10/100 Ethernet NIC can run at either 10 Mbps or at 100 Mbps. e. It provides flexibility for organizations that are uncertain about which Ethernet standard to use in the short term.

It is not a hybrid type of Ethernet.

Which of the following is not true about CSMA/CD? a. The acronym refers to Carrier Sense Multiple Access with Collision Detection b. It is used in token ring protocol LANs c. It is a contention-based media access control technique d. When a collision has occurred, the computers that wish to transmit wait a random amount of time after a colliding message before attempting to retransmit e. Computers on the circuit 'listen' before transmitting

It is used in token ring protocol LANs

LAN bottlenecks are usually found at the: a. data entry keyboard and client video monitors b. LAN server and network circuit c. hub repeaters and transducer circuit modules d. client operating system and diskette drive e. client hard drive and processor

LAN server and network circuit

___________ is how the network works conceptually. a. Physical topology b. Logical topology c. Network topology d. Ethernet e. Media access control

Logical topology

With _____________, the AP permits the owner to provide a list of valid addresses that can connect. a. EAP. b. SSID c. WEP d. MAC address filtering e. SWEP

MAC address filtering

_____________ is the software that controls the network. a. Network Operating System b. Client Operating System c. Embedded Operating System d. Network Control System e. Network Software System

Network Operating System

Which of the following is not a basic LAN component? a. client b. PAD c. server d. network interface card e. network operating system

PAD

Which of the following can provide fault tolerance for the storage space on a server? a. RAID b. SCSI c. IDE d. USB e. EIDE

RAID

_________ is not a type of Ethernet specification. a. 100Base-T b. 10GbE c. 1000Base-T (1GbE) d. 10Base-T e. Securenet

Securenet

____ is the process of creating several logically separate servers on the same physical computer. a. Server virtualization b. Server optimization c. Server proliferation d. Server platforming e. Server redundancy

Server virtualization

Which of the following is not true about layer-2 switched Ethernet? a. A switch replaces the hub. b. The physical topology is the same as the physical topology of shared Ethernet: a ring. c. The logical topology is a star. d. The switch uses a forwarding table to route the packet to the correct circuit/computer. e. The switch chooses which packet to transmit first if it receives more than one packet destined for the same computer at the same time, and stores the other packet(s) temporarily.

The physical topology is the same as the physical topology of shared Ethernet: a ring.

Which of the following is not true about switched Ethernet? a. The switch has a physical bus topology. b. It uses a switch instead of a hub. c. It has faster connections (almost immediate) than traditional Ethernet. d. It essentially provides a point-to-point connection between computers. e. It has forwarding tables in which entries are learned over time.

The switch has a physical bus topology.

A second type of network that a wireless access point provides is a ______ that is secured by a separate password that is entered on a Web page when you first connect to the network. a. WI-LO network b. guest network c. transient network d. IEEE 802.temp e. IEEE 802.11guest

WI-LO network

A(n) ___________ is a radio transceiver that plays the same role as a hub or switch in a wired network and connects the WLAN to the wired network. a. Ethernet NIC b. antennae c. wireless NIC d. access point e. hub

access point

Which of the following is not an effective way to reduce LAN network demand: a. move files to client computers b. use disk caching on the client machines c. find an application that places a large demand on the network and run it a time when the network is lightly loaded d. add hidden nodes e. shift the users' routines

add hidden nodes

10Base-T: a. supports 10 Mbps data rate b. is inexpensive c. runs on twisted pair d. is more dominant than token ring e. all of the answers are correct

all of the answers are correct

Which of the following is not a potential bottleneck for LAN performance? a. number and speed of hard disks in the server b. amount of memory in the server c. speed of server's CPU d. network interface card e. all of the answers are potential bottlenecks for LAN performance

all of the answers are potential bottlenecks for LAN performance

How can a set of 802.11b access points be configured to operate without interference? a. assigning each access point a different channel to communicate with clients b. separate each access point by more than 10 meters c. assign the same channel to no more than two access points d. use omnidirectional antennas on some access points and directional on others. e. none of the above

assigning each access point a different channel to communicate with clients

The type of logical topology that Ethernet uses is a: a. ring b. bus c. star d. mesh e. interconnected

bus

1000 Base-T: a. can run at either full- or half-duplex b. is one of the oldest forms of Ethernet c. is one of the slowest forms of Ethernet d. can only be used over coaxial cables e. has only one version, 1000Base-SLCX

can run at either full- or half-duplex

A(n) _____________ is not a common type of dedicated server. a. file server b. print server c. database server d. collision server e. remote access server

collision server

Media access control refers to: a. the price of fiber optic cable b. security over floppy disks in a user environment c. the ability for a user to use multimedia equipment in a LAN d. controlling access to a media by more than one computer in a LAN e. the control over coax cable installed by a cable service provider

controlling access to a media by more than one computer in a LAN

The ___________ is where the organization housing its primary servers. a. MDF b. guest house c. SOHO network d. data center e. load balancer

data center

__________ antennas project a signal in only one direction and are most often used on the inside of an exterior wall pointing to the inside of the building for security reasons. a. directional b. microware c. omnidirectional d. radio e. vertical

directional

A _________ is a group of related resources. a. workgroup b. domain c. server d. client e. sharepoint

domain

The cheapest time to install network cabling is: a. during the construction of the building b. as soon as the building is completed c. as soon as the building is occupied d. about five years after the building is occupied so that the exact office locations for each network computer is known e. any time that a network needs to be installed

during the construction of the building

The _____ contains the servers that are designed to serve data to customers and suppliers. a. e-commerce edge b. SAN c. LAN d. domain controller e. bottleneck

e-commerce edge

Which of the following type of media is most commonly used in backbone networks because of its high capacity? a. fiber b. infrared frequencies c. coax cable d. unshielded twisted pair e. shielded twisted pair

fiber

A(n) ____________ allows many users to share the same set of files on a common, shared disk drive. a. print server b. database server c. file server d. piconet server e. remote access server

file server

A hierarchical tree of domains within one organization that is linked to other trees in the organization is called a ___________. a. ADS b. domain c. forest d. tree e. NDS

forest

A switch uses a _____________ that is very similar to a routing table used in a router. a. cable plan b. forwarding table c. network server d. reversing table e. switching mullion

forwarding table

Which of the following is a mode in which a switch operates: a. fast learning switching b. routing switching c. fragment-free switching d. store switching e. cut switching

fragment-free switching

When a computer transmits at the same time because it cannot sense that another computer on the WLAN is currently transmitting is referred to as the: a. out of range problem b. collision problem c. hidden node problem d. controlled access problem e. media access problem

hidden node problem

Of the following, which is not true about fiber optic cable? a. it is thinner than unshielded twisted pair cable b. it is lighter than unshielded twisted pair cable c. it has a very low capacity d. it is more expensive than CAT5 unshielded twisted pair cable e. it is a type of guided media

it has a very low capacity

Wired Ethernet is a _______________ technology for small SOHO devices, meaning that manufacturers are no longer creating new products. . a. host b. legacy c. caching d. hub e. peak

legacy

The ________ acts as a router at the front of the server farm. a. load router b. MDF c. Layer 2 switch d. front-end loader e. load balancer

load balancer

A __________ indicates what resources on each server are available on the network for use by other computers and what people are allowed what access to the network. a. user profile b. user access log c. network profile d. network operating system e. server allocation list

network profile

__________ antennas transmit the signal in all directions. a. directional b. microware c. omnidirectional d. radio e. vertical

omnidirectional

Many organizations today are installing traditional wired Ethernet for desktop users and install Wi-Fi as ______________. a. overlay networks b. Bluetooth c. cellular networks d. mobile networks e. Ethernet networks

overlay networks

A logical bus topology: a. is always used by token ring protocol LANs b. has all computers connected to each other in point-to-point connections c. is limited to short distances since devices like a hub or repeater cannot be used with this type of topology d. permits every message to be received by every computer on the bus, even when those messages are intended for other computers e. has a central control device, such as a mainframe

permits every message to be received by every computer on the bus, even when those messages are intended for other computers

Another name for distributed coordination function (DCF) is __________. a. distributed carrier sense method b. physical carrier sense method c. physical carrier sense mode d. distributed carrier sense mode e. distributed coordination mode

physical carrier sense method

Each of the circuits connected to a switch is a separate _______________ circuit connecting the switch to a device on the network. a. multipoint b. point-to-point c. shared d. ring e. star

point-to-point

The server version of the Network Operating System does not: a. provide the software that performs the functions associated with the physical layer b. provide the software that performs the functions associated with the data link layer c. provide the software that performs the functions associated with the application layer d. provide the software that performs the functions associated with the network layer e. usually provide the software that performs the functions associated with the computer's own operating system

provide the software that performs the functions associated with the physical layer

10/100 Ethernet: a. uses 100 Mbps throughout the entire network b. is not useful in the short run for organizations that are uncertain about which Ethernet standard to use c. uses 10 Mbps throughout 100% of the entire network d. provides traditional 10 Mbps Ethernet connections to client computers utilizing traditional 10Base-T, with 100 Mbps generally used to the server e. uses 10 Gbps throughout 100% of the entire network

provides traditional 10 Mbps Ethernet connections to client computers utilizing traditional 10Base-T, with 100 Mbps generally used to the server

If your LAN server is overloaded, which of the following should you not consider (to solve the server problem)? a. adding one or more additional servers b. upgrading the server's CPU with a faster CPU c. increasing the amount of memory of the server d. increasing the number and speed of hard disks in the server e. replacing the cable with fiber optic cable

replacing the cable with fiber optic cable

Which of the following is not an advantage of using Cat5 unshielded twisted pair for cabling LANs? a. cost (relative to fiber) b. thickness (relative to coax) c. weight (relative to coax) d. flexibility (relative to coax) e. security (relative to fiber)

security (relative to fiber)

Breaking a network into smaller parts is called network: a. fragmentation b. segmentation c. localization d. allocation e. mitigation

segmentation

A ___ has a set of high-speed storage devices and servers that are networked together using a very high speed network. a. wide area network b. local area network c. storage area network d. storage server e. local area storage WAN

storage area network

Which of the following is not determined by a site survey? a. feasibility of the desired coverage b. potential sources of interference c. the security of the WLAN d. estimated number of access points needed to provide coverage e. current locations of the wired network into which the WLAN will connect.

the security of the WLAN

Which of the following is not a purpose for using hubs in a network? a. to act as a communications server b. to connect network cables c. to prevent attenuation d. to act as a junction box e. none of the above

to act as a communications server

To increase the volume of simultaneous messages the LAN circuit can transmit from network clients to the server(s), you can: a. increase the CPU of the server b. upgrade to a bigger circuit c. increase the number of hard disks on the server d. increase the amount of disk capacity of the server e. increase the amount of memory of the server

upgrade to a bigger circuit

Switch-based Ethernet: a. uses a hub to connect computers b. has a physical topology of a ring c. has a logical topology of a ring d. has a logical topology of a bus e. usually enables all attached circuits to send or receive packets simultaneously

usually enables all attached circuits to send or receive packets simultaneously

Hubs: a. usually incorporate repeaters or amplifiers b. have connection points called handles c. limit the distance of a network to a few meters in length d. are a difficult method to connect network cables e. operate at the application layer

usually incorporate repeaters or amplifiers

_____________ refers to practice of writing symbols in chalk on sidewalks and walls to indicate the presence of an unsecured WLAN. a. wardriving b. chalking c. warchalking d. marking e. identifying

warchalking

A(n) _____________ is used in a computer to connect it to a WLAN. a. Ethernet NIC b. antennae c. wireless NIC d. access point e. hub

wireless NIC