Networking 2 13,15, 16-17, 18

Spans Multiple Cities or countries Spans a large metropolitan area of city. Spans a building or campus Spans a region near an individual

Wan - country Man- metropolitan lan- campus pan -personal (panlan manwan)

An analog hardware device used to extend a LAN by amplifying and sending all signals to the other side of the network.

repeater

IEEE 802.3 standard applies only to wired equipment.

true

A ___________ lists all possible packet switches and gives a next hop for each.

Forwarding Table

The goal of a _______ is to allow as many computers as possible to send packets simultaneously.

WAN

In the designation 100BaseT, the "100" defines the data rate in mega bits per second.

true dat

Analog signals used to carry voice First generation to use digital signal to carry voice Support of web browsing and photo sharing; allows roaming across North Armerica, Japan, and Europe Focus on real-time multimedia

1g 2g 3g 4g

Twisted pair Ethernet uses RJ45 connectors which are not interchangeable with the jacks used to connect telephones.

Twisted pair Ethernet uses RJ45, which are a larger version of the RJ11 connectors used to connect telephones.

network topology a. single cable attaches all computers b. a direct connection between each pair of computers on the network c. all computers are connected on a closed loop and the network is disabled if one of the cables is cut d. all devices on the network are directly connected to a central point

a. bus b. mesh c. ring d. star

pan technologies: a) Used in industry, scientific and medical devices; frequently used in environments where electromagnetic interference is present b) Requires line-of-sight and frequently used in television/entertainment remote controls c) Often used with headset for cell phones d)Allows electrical appliances to connect to a Smart Grid

a. ism wireless b. infared c. bluetooth d. zigbee

The three basic purposes of the Network Interface Card (NIC) is

a. to handle address recognition b. frame recognition c. CRC computation

The three building blocks of a wireless LAN are:

access point wireless hosts or nodes switch or router to connect wired network to access point

A mechanism used to connect two LAN segments and forward frames from one segment to another.

bridge

A network interface card is an intergrated part of a device cannot be replaced

false

An Ethernet switch, sometimes called a Layer 2 switch, is an electronic device that resembles a hub allowing frames to be transmitted from one computer to another computer on a WAN.

false

Next-hop forwarding depends on the packet's original source and on the path the packet has taken before it arrives at a particular packet switch.

false

Static routing is a program that computes and installs routes when a packet switch boots; the routes change only when conditions on the network change.

false

The expense of packet switched technologies does not depend on the distances they span.

false

The term "frame format" refers to the way a packet is sent across a communication stream.

false

Twisted pair Ethernet designation 10BaseT uses Cat 5E cabling and runs at 100Mbps

false

Circuit switching forms the basis of the Internet.

false - packet switching

The IEEE addressing scheme does not support the following address types

podcast (unicast, broadcast, multicast)

Circuit switching provides

the illusion of an isolated physical path between a sender and a receiver _____________________ Circuit switching provides the illusion of an isolated physical path between a pair of communicating entities.

A single switch can be configured to emulate multiple, independent switches known as a virtual local area network switch (VLAN switch).

true

Communication between two parties on a circuit switched network is not affected by communication between other parties sharing a common medium.

true

In circuit switched models a sender must perform initialization before communication begins and notification when communication terminates.

true

Length specification is a major concern in the development and implementation of LAN technology.

true

Only the first portion of a destination address is used when forwarding a packet across a WAN. When the packet reaches the switch to which the destination computer attaches, the second part of the address is used to forward the packet to the correct local computer

true

The basic packet format of Ethernet has remained basically unchanged in the past thirty years.

true

The frame header contains information to process the frame.

true

The term "frame" refers to a layer 2 packet.

true

Default routing is optional and a default entry is present only if more than one destination has the same next-hop value.

true dat

Which of the following is true concerning a Media Access Control address?

unique to each network device ___________________ Rather than assign individual addresses, IEEE assigns a block of addresses to each equipment vendor, and allows the vendor to assign a unique value to each device they manufacture.

Signal strength must be increase in order to send signals across greater distances on a LAN.

false