FREE PSD Telecommunications Technology and 9-1-1 Systems Questions and Answers

Question 1

What is the standard, nationally recognized abbreviation a dispatcher should use to open communication with a TDD/TTY user?

Accepted Answer

GA (Go Ahead)

Answer

PLS TYPE (Please Type)

Answer

Q (Question)

Answer

SK (Stop Keying)

Question 2

Which of the following capabilities is a key feature of Next Generation 9-1-1 (NG9-1-1) that is not available in traditional E9-1-1 systems?

Accepted Answer

Receiving text messages, images, and video.

Answer

Displaying the caller's phone number (ANI).

Answer

Automatically routing calls to the correct PSAP.

Answer

Providing the caller's address from a landline (ALI).

Question 3

In the context of a 9-1-1 call, what is the difference between ANI and ALI?

Accepted Answer

ANI is the phone number, and ALI is the location information.

Answer

ANI is the address, and ALI is the phone number.

Answer

ANI is for landlines, and ALI is for cell phones.

Answer

ANI is the dispatcher's ID, and ALI is the caller's ID.

Question 4

Upon receiving a 'silent' or 'open-line' 9-1-1 call where no voice is heard, what is the dispatcher's first priority after ensuring the line is open?

Accepted Answer

Initiate a TDD/TTY query to check for a silent communicator.

Answer

Immediately disconnect the call to free up the line.

Answer

Assume it is a misdial and wait for another call.

Answer

Dispatch a police unit for a prank call.

Question 5

What is the function of a 'selective router' in the E9-1-1 network infrastructure?

Accepted Answer

It directs 9-1-1 calls to the correct PSAP based on the caller's location.

Answer

It records all 9-1-1 calls for quality assurance.

Answer

It provides dispatchers with internet access.

Answer

It blocks non-emergency calls from reaching 9-1-1.

Question 6

What is a primary challenge that Voice over Internet Protocol (VoIP) technology presents for 9-1-1 systems?

Accepted Answer

VoIP makes it difficult to accurately determine the caller's physical location.

Answer

VoIP calls have poor audio quality.

Answer

It is impossible to transfer a VoIP 9-1-1 call.

Answer

Only law enforcement agencies can use VoIP technology.

Question 7

What does the acronym 'PSAP' stand for in the field of emergency communications?

Accepted Answer

Public Safety Answering Point

Answer

Public Service Access Point

Answer

Primary Safety Answering Protocol

Answer

Police Service Action Plan