ccna review

Question 1

Requirements for Internet Connection

Answer 1

Physical connection: used to transfer signals between PCs within the
local network and to remote devices on the Internet
– Logical connection: uses standards called protocols. A protocol is a
formal description of a set of rules and conventions that govern how
devices on a network communicate.
– The application: interprets the data and displays the information in an
understandable form

Question 2

uses standards called protocols. A protocol is a
formal description of a set of rules and conventions that govern how
devices on a network communicate.

Answer 2

Logical connection:

Question 3

used to transfer signals between PCs within the
local network and to remote devices on the Internet

Answer 3

Physical connection:

Question 4

interprets the data and displays the information in an
understandable form

Answer 4

The application:

Question 5

is a printed circuit
board that provides network communication
capabilities to and from a personal computer

Answer 5

A network interface card (NIC)

Question 6

is a device that provides the computer with connectivity to a telephone line.

Answer 6

A modem, or modulator-
demodulator,

Question 7

converts (modulates)
the data from a digital signal to an
analog signal that is compatible
with a standard phone line.

Answer 7

The modem

Question 8

is a set of protocols or rules
developed to allow cooperating
computers to share resources
across a network.

Answer 8

Transmission Control
Protocol/Internet Protocol (TCP/IP)

Question 9

is a program that is useful for verifying a
successful TCP/IP installation.

Answer 9

Ping

Question 10

This ping is unique and is called an internal
loopback test. It verifies the operation of the TCP/IP stack and NIC
transmit/receive function.

Answer 10

ping 127.0.0.1 -

Question 11

A ping to a host PC verifies the TCP/IP address
configuration for the local host and connectivity to the host.

Answer 11

ping IP address -

Question 12

Computers operate with electronic switches that are
either

Answer 12

“on” or “off”, corresponding to 1 or 0.

Question 13

Internet Protocol (IP) addresses assigned to
computers on the Internet are

Answer 13

32-bit binary numbers

Question 14

The 32-bit binary addresses used on the Internet are
referred to as

Answer 14

Internet Protocol (IP) addresses.

Question 15

will always be all 1s until the network
address is identified and then be all 0s from there to the
right most bit of the mask.

Answer 15

subnet mask

Question 16

Address Example: 10.34.23.134

Answer 16

IP address

Question 17

Address Example: 255.0.0.0

Answer 17

Subnetmask

Question 18

Address Example: 10.255.255.255

Answer 18

broadcast address

Question 19

Address example: 10.0.0.0

Answer 19

Network address