Networking

There are many web sites that offer audio or video steaming of TV programs and movies over the Internet. These services generally rely on the _____________ technology. dualcasting anycasting multicasting unicasting broadcasting

multicasting

Which is NOT a key element of a computer network? hosts messages networking (intermediary) devices applications people

people

Standard details of network cables should be defined in the _____ layer. application transport internet data link physical

physical

Port numbers have to be included in the header of _____________ segments and datagrams datagrams only packets only segments only

segments and datagrams

Imagine that, after processing human input, the browser's HTTP protocol produces "GET / HTTP/1.1 Host: www.savetrees.org". Then, according to the _______ , the message means 'Please send me the main page of www.savetrees.org using the HTTP protocol, version 1.1.' semantic rule syntactic rule link rule message rule lexicon rule

semantic rule

MAC addresses are used at the _________ layer for addressing. Application Data link Internet Physical

Data Link

Which is NOT a PDU(Protocol Data Unit) ? (Three Answers) Datagram Frame HTTP Packet Byte DNS Segment

HTTP Byte DNS

The media access protocol, CSMA/CD, is activated by the host station when it is connected to a __________. Switch Hub Bridge either a switch or a hub

Hub

12 hexadecimal digits are 36 bits. True or False

False

A brute force attack on personal files can be stopped

False

A socket = An MAC address: A port number True or False

False

The campus network is a type of _____ . LAN RAN PAN MAN

LAN

Which statement is true? TCP is a connection-less protocol. TCP is a reliable protocol. UDP is a reliable protocol. IP is a connection-oriented protocol. IP is a reliable protocol.

TCP is a reliable protocol.

Choose a correct statement regarding network addressing. The MAC address is a global address. The MAC address is a public address recognized by the Internet. The MAC address is a temporary address. The IP address can be either temporary or permanent.

The IP address can be either temporary or permanent.

________ most likely depend(s) on UDP in the transport layer. E-mails Internet surfing with a web browser FTP Three-way video conferencing over the Internet

Three-way video conferencing over the Internet

Choose a CORRECT statement on network addressing. The network interface card of a computer has at least one IP address printed on it. The MAC address is stored in a computer's hard drive. A permanent IP address is dynamically allocated to a host station whenever it submits a request. The MAC address does not have to be bound to a node physically. To access LAN, a host station needs a pair of MAC and IP addresses.

To access LAN, a host station needs a pair of MAC and IP addresses.

Bots and Botnets were orgininally created for Positive benefial use not malicious act. True False

True

A machine infected with a bot is known as? Walking Dead Zombie Spyware Worm

Zombie

Modulation is used when a node produces text data/signal and the delivery channel relies on analog signaling. a node produces sound data/signal and the delivery channel relies on digital signaling. a node produces digital data/signal and the delivery channel relies on analog signaling.

a node produces digital data/signal and the delivery channel relies on analog signaling.

The Chrome web browser should run in the _________ layer. application transport internet data link

application

Which is correctly pairing an intermediary device with the standard layer it operates? hub: layer 2 device switch: layer 3 device bridge: layer 2 device

bridge: layer 2 device

The MAC address of a NIC should be set ___. by the manufacturer by the DHCP server when the computer restarts by the network administrator by the operating system by the network designer

by the manufacturer

Which WAN topology may NOT be a cost-effective choice when there are many offices geographically distributed? full mesh partial mesh hierarchical hub-and-spoke

full mesh

Which correctly pairs a standard layer and its PDU name? data link - segment internet - packet transport - frame application - segment

internet - packet

The main equipment room subsystem is the termination point of backbone cabling. is typically located on the top floor of a building. houses workgroup switches that directly connect user stations.

is the termination point of backbone cabling.

Which intermediary device defines the boundary of a broadcast domain? switch hub router

router

Which is an inter-networking device? switch router wireless access point bridge

router

As for TCP and UDP, which statement is CORRECT? Both are connection-oriented protocol. Both undertake the detection and correction of transmission errors. TCP is better than UDP in handling real-time traffic. Both are reliable protocol. Both are defined at the transport layer.

Both are defined at the transport layer.

The wireless access point connects two different LAN standards, generally Ethernet and WiFi. Then, it must be a type of ___________. Router Hub Bridge

Bridge

The method of establishing trust where a central authority determines who can be trusted is? The Government Web of Trust Certificates Man-in-the-middle attack

Certificates

According to the encapsulation and de-encapsulation process between standard layers, the data field of a frame most likely includes a(n) : receiving station's MAC address sending station's MAC address IP packet TCP segment application PDU (protocol data unit)

IP packet

1. Choose a FALSE statement regarding the wiring (or telecommunications) closet. It is a connecting point between horizontal cabling and backbone cabling. It houses intermediary devices to connect end stations in the adjacent area. It has one or more patch panels that are normally rack-mounted. It is generally located on the bottom floor of a building.

It is generally located on the bottom floor of a building.

Which is a performance measure of network capacity/speed? MB (megabyte) Mbps (megabits per second) Milliseconds MBPS (megabytes per second)

Mbps (megabits per second)

____________ shows a packet's routing path and delay while traversing the Internet. Session management Error control Packet creation Flow control Provision of message integrity

Packet creation

___________ is an important utility in testing and troubleshooting network link and nodes. Png Pong Ping Pine

Ping

Which is a CORRECT statement on network addressing? A node only needs an IP address for networking. The IP address is also called as hardware address. The MAC address consists of 12 hexadecimal characters (48 bits). The MAC address of a device can be permanently changed.

The MAC address consists of 12 hexadecimal characters (48 bits).

The __________ restricts frame delivery between two host stations to a single path? modem switch router

switch

Structured cabling is achieved in a building when the trunk links utilize optical fibers. the cabling is designed to integrate voice and data traffic. the cabling is conducted according to published standard practice.

the cabling is conducted according to published standard practice.

The real-life analogy of an IP packet is: the airplane that delivers the Jayne's letter the envelop that contains the Jayne's letter Jayne and Brian's mailing addresses the Jayne's letter to Brian

the envelop that contains the Jayne's letter

Which represents key properties of the analog wave? bandwidth, amplitude, frequency frequency, wavelength, bandwidth wavelength, frequency, amplitude

wavelength, frequency, amplitude