PROGRESSION: FIELD TECH IV - V CONVENTIONAL NCTI 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) | ALREADY GRADED A+

PROGRESSION: FIELD TECH IV - V CONVENTIONAL NCTI

2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT

DETAILED ANSWERS WITH RATIONALES (VERIFIED

ANSWERS) | ALREADY GRADED A+

What type of routing allows network administrators to specify additional

information sources for the routing table and network model? -

ANSWER- Policy-based

Which of the following is a Microsoft Windows utility that displays a

computer's IP addressing and connectivity settings? - ANSWERIpconfig

Which MS-DOS command-line utility is the quickest and easiest way to

evaluate whether a computer is up and running, and attached to a TCP/IP

network? - ANSWER- Ping

After entering "arp" into the MS-DOS command line, which of the

following switches would display the ARP cache? - ANSWER- -a or -g

What is the second step when troubleshooting a network? - ANSWERIdentify the affected area

Scenario: As you are connecting the office computers, you use one patch

cord to connect each patch panel port to a hub port, and another patch

cord to connect each work area port to a PC. You power up all the PCs

and look at the hub port status indicators. All but one port shows green.

What is the first troubleshooting step you should take? - ANSWEREstablish the symptoms

Scenario: You have finally identified the affected area and, as you

proceed to the next step, you realize that since this is a new installation,

there is no previous time that is known when everything worked. The

installation itself is the only "change" and the third troubleshooting step.

What step is next? - ANSWER- Select the most probable cause

What voice issue is a normal occurrence on the PSTN and other voice

networks, and occurs as a result of network delay and the two- to fourwire conversion process? - ANSWER- Echo

Which protocol has a header of 5 bytes and a trailer of 3 bytes? -

ANSWER- Point-to-Point Protocol

What Protocol Independent Multicast (PIM) is designed to support large,

densely populated multicast groups? - ANSWER- Dense Mode (DM)

Which device cannot solely break up LAN broadcast traffic? If large

workgroups present broadcast containment issues, consider VLANs

designed as separate routed subnets. - ANSWER- Switch

Baseband signaling - ANSWER- is predominant in Ethernet networks.

two ways we can use a flow of energy to carry data - ANSWER- Analog

and digital

Simplex - ANSWER- A signal may flow in only one direction. A

commercial radio station uses simplex communication, because listeners

cannot transmit radio signals back to the station.

Half-duplex - ANSWER- Signals may flow in either direction, but not

simultaneously. For example, a two-way radio allows only one user to

speak at any one time.

Full-duplex - ANSWER- Signals may flow in both directions

simultaneously. A telephone is the best example of full-duplex

communication. One wire brings a signal from the telephone company to

your home, and a second wire carries a separate signal from your home

back to the telephone company. Thus, you can both hear and speak

simultaneously.

Synchronous - ANSWER- The communicating parties or endpoints use

time to organize communication. In a data network, two communicating

computers use each clock "tick" to detect whether a digital bit is a 1 or 0.

For example, as each time interval passes, a computer checks the

network cable to see whether the voltage is high (binary 1) or low

(binary 0). Because the timing determines the meaning of the signal, it is

essential that the endpoints are synchronized to the same clock before

sending signals.

Asynchronous - ANSWER- Bits are not transmitted on any strict

timetable. For example, a computer modem typically uses 8 bits to

represent one character or letter. To indicate the start of each character,

the sending modem transmits a "start" bit to alert the receiving end to the

incoming signal. After the final bit of the eighth character is transmitted,

the sending modem transmits a "stop" bit to indicate the end of the

character. This process is repeated for each character the modem

transmits. Thus, the receiving modem must stay synchronized to the

signal only for the length of time it takes to transmit 8 bits. If the

sending and receiving clocks are slightly out of synchronization, these

short data transfers will still be successful.

Which of the following is most typical of a broadband network? -

ANSWER- Multiple analog channels

Data bus size - ANSWER- The size of the bus refers to the number of

data bits a CPU can work on in a single instruction.

Clock speed - ANSWER- The clock speed indicates how many

instructions per second the processor can execute. Each "tick" of the

clock is called a cycle, thus clock speed is measured in cycles per

second. A single cycle per second is called 1 hertz (Hz), 1,000 Hz is 1

kilohertz (kHz), 1 million Hz is 1 megahertz (MHz), and 1 billion Hz is

1 gigahertz (GHz). A CPU that runs at 400,000,000 cycles per second is

a 400- MHz processor.

storage - ANSWER- used to describe media that hold data for longer

periods, even when the power goes off.