The topology that doesn't have a central connection point or a single cable common to every host on the network is ____.

a.  bus

b.  star

c.  ring

d.  mesh

What is the primary disadvantage of networks that utilize a star topology?

a.  Single point of failure

b.  difficult to troubleshoot

c.  token passing delays

d.  most expensive topology to implement

Segments are the PDU of what OSI model layer?

a.  Physical

b.  Application

c.  Session

d.  Transport

Network layer PDU's are called ____.

a.  bits

b.  frames

c.  packets

d.  segments

How are addresses applied to Data-Link layer devices?

a.  Network neighborhood, properties, address

b.  Burned in

c.  Statically

d.  Logically

Which sublayer of the Data-Link layer is responsible for creating frames out of upper layer packets?

a.  MAC

b.  LEC

c.  LLC

d.  LMI

c. LLC

Logical Link Control

Which Transport layer protocol depends on upper layer protocols for retransmission?

a.  TCP

b.  UDP

c.  IPX

d.  UPX

The TCP protocol uses processes that establish, maintain, and terminate ____ between hosts.

a.  virtual sessions

b.  virtual circuits

c.  virtual LANs

d.  data streams

What layer of the OSI model controls the dialog between applications?

a.  Network

b.  Transport

c.  Session

d.  Presentation

What two devices work at the Physical layer of the OSI model?

a.  Hubs

b.  Switches

c.  Routers

d.  Repeaters

a.  Hubs

d.  Repeaters

What are the three layers of the OSI model that might provide error correction?

a.  Application

b.  Presentation

c.  Transport

d.  Data-Link

a.  Application

b.  Presentation

d.  Data-Link

What is the process called whereby the local computer lists an available drive that does not exist locally but on a remote server?

a.  Spoofing

b.  Mapping a drive

c.  Data mining

d.  DNS

Which of the following acronyms refers to a network confined to an office building or a school campus?

a.  LAN

b.  MAN

c.  WAN

d.  SAN

How many separate links are required for a full mesh topology among 9 hosts?

a.  81

b.  1

c.  36

d.  16

c.  36

(N*(N-1))/2

Arrange the layers of the OSE model in order from top to bottom.

a.  Presentation, Physical, Application, Data-Link, Transport, Session, Network

b.  Application, Presentation, Session, Transport, Network, Data-Link, Physical

c.  Appplication, Data-Link, Network, Transport, Session, Presentation, Physical

d.  Data-Link, Transport, Session, Network, Presentation, Physical, Application

Which of the following is not an Ethernet designation?

a.  10Base2

b.  10Base5

c.  10Base-T

d.  10Base-FX

Routers operate at the ____ layer of the OSI model.

a.  Physical

b.  Logical

c.  Data-Link

d.  Network

What type of addressiong is used my the Network layer of the OSI model?

a.  MAC

b.  Logical

c.  Physical

d.  Port

Which OSI layer is responsible for data encryption and compuression?

a.  Physical

b.  Session

c.  Application

d.  Presentation

Which layers of the OSI model deal with specific aspects of the actual data?

a.  Physical, Data Link, Network

b.  Network, Transport, Session

c.  Session, Presentation, Application

d.  Applicaion, Data Link

A Transport layer protocol that is connection orientated is:

a.  UDP

b.  SAP

c.  TCP

d.  IPX

What is the formula for determining the number of links required to connect hosts in a mesh topology?

a.  N(N-1)

b.  N(N)

c.  N+N/2

d.  N(N-1)/2

Which of the following topologies provide a great deal of scalability?

a.  Ring

b.  Bus

c.  Star

d.  Mesh

What topology type is characterized as inexpensive to build?

a.  Ring

b.  Bus

c.  Star

d.  Mesh

The network cloud symbol typically represents the ____ and ___ layers of the OSI model to the network professional.  (Choose two).

a.  Physical

b.  Data-Link

c.  Network

d.  Transport

a.  Physical

b.  Data-Link

What does the N represent in the formula for determining how many links are reequired for a mesh network topology?

a.  Number of links

b.  Number of hosts

c.  Network number

d.  Network topology

If redundancy is necessary and cost is not a primary factor, a ____ network topology could be implemented.

a.  bus

b.  star

c.  ring

d.  mesh

How many links are required to proved a star topology to 50 hosts?

a.  50

b.  500

c.  1225

d.  2500

Which device is used to describe a the central component used ina star topology?

a.  Spoke

b.  Hub

c.  Transceiver

d.  Repeater

The technique of sharing a common medium is known as CSMA/CD, which means

a.  Carrier Sense Media Access with Collision Detection

b.  Carrier Sense Mulitple Access with Collision Detection

c.  Carrier Sense Media Aware with Collision Detection

d.  Cable Star Media Access with Collision Detection