Cdv Da Fundamentals Day 2
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. What must be done before working on telephone pairs? - CORRECT
ANSWER Disconnect the excisting line from the gateway.
2. What tool should be used to check for voltage before connecting the eMTA?
- CORRECT ANSWER A foreign voltage detector.
3. Why is it important to test the lines before connecting the eMTA? -
CORRECT ANSWER To ensure no voltage is not present, preventing electrical
hazards.
4. Why should the ILEC service be disconnected even if it appears inactive? -
CORRECT ANSWER ILECs use "soft dial tone"
5. What is soft dial tone? - CORRECT ANSWER Keeps talk battery on the pairs
even without active service.
6. Risk that exists if a customer receives a call while the technician is handling
twisted pair cable? - CORRECT ANSWER Cable can become energized with
approximately 90 VAC, posing a shock hazard.
,7. What happens to the electric current when you speak into a telephone? -
CORRECT ANSWER Current fluctuates
8. How does communication occur between two parties over a telephone? -
CORRECT ANSWER Process of current fluctuation and transmission
9. What type of wires are typically used for each telephone line? - CORRECT
ANSWER Two copper wires: tip and ring.
10.What is the central junction box in a building used for? - CORRECT ANSWER
Telephone jacks throughout the building
11.What is the term for the wires between the junction box and the exchange?
- CORRECT ANSWER The local loop
12.One tip wire at the NID represents. - CORRECT ANSWER A loop-through
telephone circuit
13.Terminals commonly found in ILEC NIDs? - CORRECT ANSWER Screw-
terminal types
14.What does Comcast provide for configuring complex circuits? - CORRECT
ANSWER Punch-down blocks
, 15.RJ11 jack inside the NID used for? - CORRECT ANSWER Serves as the Test
Port
16.What is housed on the ILEC side of the NID? - CORRECT ANSWER The cross-
connect and surge protectors
17.Voltage for incoming calls posing a shock risk. - CORRECT ANSWER ~90 VAC
18.Positive wire on the telephone circuit. - CORRECT ANSWER Tip
19.Negative wire on the telephone circuit. - CORRECT ANSWER Ring
20.What color is typically used for the Tip and Ring wire in a standard two-wire
telephone plug? - CORRECT ANSWER Green/Red(Tip/Ring)
21.In a four-wire plug, what are the colors for the second pair of Tip and Ring?
- CORRECT ANSWER Black/Yellow(Tip/Ring)
22.What colors are used for the third pair in multi-pair telephone wiring? -
CORRECT ANSWER White/Blue(Tip/Ring)
23.Ethernet color coding standard with follow. - CORRECT ANSWER T568B
24.What is the color coding for Pair 1 in CAT 3/CAT 5 wiring? - CORRECT
ANSWER White-Blue (Tip) / Blue-White (Ring).
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. What must be done before working on telephone pairs? - CORRECT
ANSWER Disconnect the excisting line from the gateway.
2. What tool should be used to check for voltage before connecting the eMTA?
- CORRECT ANSWER A foreign voltage detector.
3. Why is it important to test the lines before connecting the eMTA? -
CORRECT ANSWER To ensure no voltage is not present, preventing electrical
hazards.
4. Why should the ILEC service be disconnected even if it appears inactive? -
CORRECT ANSWER ILECs use "soft dial tone"
5. What is soft dial tone? - CORRECT ANSWER Keeps talk battery on the pairs
even without active service.
6. Risk that exists if a customer receives a call while the technician is handling
twisted pair cable? - CORRECT ANSWER Cable can become energized with
approximately 90 VAC, posing a shock hazard.
,7. What happens to the electric current when you speak into a telephone? -
CORRECT ANSWER Current fluctuates
8. How does communication occur between two parties over a telephone? -
CORRECT ANSWER Process of current fluctuation and transmission
9. What type of wires are typically used for each telephone line? - CORRECT
ANSWER Two copper wires: tip and ring.
10.What is the central junction box in a building used for? - CORRECT ANSWER
Telephone jacks throughout the building
11.What is the term for the wires between the junction box and the exchange?
- CORRECT ANSWER The local loop
12.One tip wire at the NID represents. - CORRECT ANSWER A loop-through
telephone circuit
13.Terminals commonly found in ILEC NIDs? - CORRECT ANSWER Screw-
terminal types
14.What does Comcast provide for configuring complex circuits? - CORRECT
ANSWER Punch-down blocks
, 15.RJ11 jack inside the NID used for? - CORRECT ANSWER Serves as the Test
Port
16.What is housed on the ILEC side of the NID? - CORRECT ANSWER The cross-
connect and surge protectors
17.Voltage for incoming calls posing a shock risk. - CORRECT ANSWER ~90 VAC
18.Positive wire on the telephone circuit. - CORRECT ANSWER Tip
19.Negative wire on the telephone circuit. - CORRECT ANSWER Ring
20.What color is typically used for the Tip and Ring wire in a standard two-wire
telephone plug? - CORRECT ANSWER Green/Red(Tip/Ring)
21.In a four-wire plug, what are the colors for the second pair of Tip and Ring?
- CORRECT ANSWER Black/Yellow(Tip/Ring)
22.What colors are used for the third pair in multi-pair telephone wiring? -
CORRECT ANSWER White/Blue(Tip/Ring)
23.Ethernet color coding standard with follow. - CORRECT ANSWER T568B
24.What is the color coding for Pair 1 in CAT 3/CAT 5 wiring? - CORRECT
ANSWER White-Blue (Tip) / Blue-White (Ring).
