Which layer of the OSI model handles data translation, code formatting, and encryption occur?
A -
Network
B -
Transport
C -
Presentation
D -
Session
2-
Using a class C address you need five subnets with a maximum of 17 hosts on each of these subnets.
Which subnet mask would you use?
A -
255.255.255.192
B -
255.255.255.224
C -
255.255.255.240
D -
255.255.255.248
3-
What is the protocol and what is the second part of the following network address? (Choose all that
apply.)
10.0.0.254 mask 255.0.0.0
A -
IPX MAX address.
B -
IP Class C director broadcast.
C -
Private IP address node number.
D -
Public IP address directed broadcast.
4-
There are five different types of IP address classes. What IP address class is used for multicasting?
A -
A
B -
B
C -
C
D -
D
5-
Which layer of the OSI model uses packets as the PDU (Protocol Data Unit)?
A -
Network
B -
Presentation
C -
Session
D -
Data link
6-
Cisco supports IPX traffic using different encapsulation types can go over the same interface.
A -
TRUE
B -
FALSE
7-
What must you do to test connectivity on a dial on demand routing (DDR) link?
A -
Increate the idle import parameter.
B -
Send interesting traffic across the link.
C -
Switch
D -
Repeater
8-
Your company is considering purchasing a new accounting software application from ABC accounting
company. The ABC accounting company has decided to come in and let you install a demo copy of their
software so that you can test it in your network with a few hosts. The server and the hosts that will
connect to this server will need a 10Mbps connection. Your company is currently using a hub. Your
company has decided to use this new accounting software application. However when you ran your
packet analyzer you noticed the rest of the hosts on your network that are not using this application have
a bandwidth problem with the new accounting system installed. Since your company has decided to use
this new application they would like you to resolve the bandwidth problem. What is the most economical
decision would you implement for resolving this problem?
A -
Install new 100 Mbps switches, and change all hosts’ NIC to 100 Mbps.
B -
Segment network with router, and place all testing hosts and the new server into a separate subnet (network).
C -
Add a Bridge and separate the two networks.
9-
What are the benefits of replacing a hub with a bridge and segmenting the network?
A -
It increases the number of collision domains.
B -
It decreases the number of collision domains.
C -
It increases the number of broadcast domains.
D -
It decreases the number of broadcast domains.
10-
To govern the flow of data between two devices, TCP uses a flow control mechanism. Which one of the
following is true about this mechanism?
A -
TCP makes no effort to check for lost or duplicate data packets.
B -
The application layer must sequence data packets when using TCP.
C -
TCP controls the flow of UDP data through negative acknowledgements NAK.
D -
TCP is a connection-oriented protocol that acknowledges receipt of data packets and is considered reliable.
