2024年4月5日发(作者：)

statements best describe a physical connection? [Choose two.]

答案：ab

a. used to transfer data between PC and local network

b. could utilize modem or NIC

c. Internet standard is TCP/IP

d. interprets data and displays information

of the following will test the internal loopback of a node?

答案：e

a. ping 223.223.223.223

b. ping 10.10.10.1

c. ping 192.168.1.1

d. ping 255.255.255.255

e. ping 127.0.0.1

phrases describe a byte? [Choose two.]

答案：e

a. a single binary digit

b. a single addressable storage location

c. +5 volts of electricity

d. the value range from 0 to 127

e. a grouping of eight binary digits

of the following interprets the data and displays the information in an

understandable form for the user to see?

答案：b

a. remote devices

b. application

c. logical connection

d. protocol stack

e. physical connection

of the following are popular web browsers? [Choose two.]

答案：efg

a. World Wide Web

b. Quicktime

c. Macromedia Flash

d. Acrobat

e. Internet Explorer

f. Firefox

g. chrome

t the Base 10 number 116 into its eight bit binary equivalent. Choose the

correct answer from the following list:

答案：c

a. 01110110

b. 01010110

c. 01110100

d. 01111010

e. 01110010

f. 01110111

were TCP/IP protocols developed?

答案：a

a. To allow cooperating computers to share resources across a network

b. To determine the "best path" decision making when forwarding packets of data.

c. To insure that error correction of each packet takes place.

d. To allocate resources that are needed for operating a computer on a LAN.

you perform a Boolean AND on the IP address 172.16.20.23 using the subnet mask

of 255.255.248.0, which of the following is the subnetwork address?

答案：c

a. 172.16.20.16

b. 172.16.0.0

c. 172.16.16.0

d. 172.16.20.0

e. 172.16.24.0

an 8 bit binary number, what is the total number of combinations of the eight

bits?

答案：e

a. 254

b. 512

c. 255

d. 1024

e. 256

f. 128

of the following are functions of a web browser without the addition of

plug-ins? [Choose three.]

答案：abe

a. requests information

b. receives information

c. updates IRQ‘s

d. displays Quicktime movies

e. contacts web servers

f. displays flash animation

of the following is true regarding network bandwidth?

答案：ad

a. Bandwidth is not a key factor in analyzing network performance

b. Bandwidth is free.

c. Bandwidth never increases.

d. Bandwidth has capacity limits.