commands

Question 1

command displays a PCs current IP routing table

Answer 1

route print

Question 2

command displays netbios info in windows for IP based networks

Answer 2

nbtstat

Question 3

rs-232 is a __ pin connector (aka DB-9) that is a type of ______ serial communication medium for low speed communication

Answer 3

9, async

Question 4

the ____ command can be used to find the layer-3 IP address to a corresponding layer-s MAC address

Answer 4

ARP

Question 5

lookup a server’s ip via its fully qualified domain name like brockport.edu, the command tool you use on windows is ____

Answer 5

nslookup

Question 6

csma/ca is a protocol for ethernet (true/false)

Answer 6

false

Question 7

a single-mode fiber-optic cabling allows an individual light path through it (true/false)

Answer 7

true

Question 8

STP is a built-in feature of a ROUTER which is used to avoid the broadcast storm (true/false)

Answer 8

false (switches)

Question 9

IGMP protocol is used by the ping command (true/false)

Answer 9

false

Question 10

in an ip packet there are a few reserved bits to indicate the length of this ip packet (true/false)

Answer 10

true

Question 11

a bluetooth network allows wireless communication for short distances (true/false)

Answer 11

true

Question 12

in copper or fiber, the speed slows to about 2/3 of light speed and becomes frequency dependent (true/false)

Answer 12

true

Question 13

port #’s less than 1024 are well-known ports for stuff like telnet, ftp, dns, etc (true/false)

Answer 13

true

Question 14

the unix traceroute command is used to determine the MAC address of a remote machine (true/false)

Answer 14

false

Question 15

auto mdi-x can automatically switch to the proper configuration once a cable is connected (true/false)

Answer 15

true

Question 16

data rates of usb 2.0 & 3.0 are 10 times different (true/false)

Answer 16

true

Question 17

rj11 is a 4 pin connector used in telephone networks (true/false)

Answer 17

true

Question 18

in a vacuum all light waves travel at same speed no matter the frequency (true/false)

Answer 18

true

Question 19

gps is a popular app that uses fiber optics (true/false)

Answer 19

false

Question 20

TTL uses 8 bits in an ip header to count routing hops

Answer 20

true

Question 21

what is used by a switch to identify devices?

Answer 21

mac

Question 22

most popular topology used on modern lans

Answer 22

star

Question 23

ftp port

Answer 23

20,21

Question 24

ssh port

Answer 24

22

Question 25

telnet port

Answer 25

23

Question 26

http port

Answer 26

80

Question 27

smtp port

Answer 27

25

Question 28

of chars in ascii char set

Answer 28

128

Question 29

control chars

Answer 29

33

Question 30

special chars

Answer 30

33