AT&T TKT II QUESTIONS AND
ANSWERS 2026 - 2027
A computer uses _____ to communicate data between its components
- ANSWERS-Buses
If you have a Ethernet cable loose from your router to your computer ,
what layer issue is that a part of? - ANSWERS-Physical
What layer does a router operate in the OSI MODEL ? - ANSWERS-
Network Layer.
What layer does a Hub operate in the OSI MODEL? - ANSWERS-
Physical layer
What layer does a switch operate in the OSI MODEL? - ANSWERS-
Data Link layer
What layer is HTTP, FTP, POP, DNS & SMTP used in OSI model? -
ANSWERS-Application Layer
Which of the following is NOT a physical layer component in the OSI
MODEL?
A: Ethernet Cables
, B: Hub
C: Ethernet Switch
D: cat5 - ANSWERS-C: Ethernet switch , (operates in Data link
layer)
In simplex transmission, - ANSWERS-one-way transmission
Half-duplex transmission - ANSWERS-A type of data transmission in
which data can travel in either direction but only in one direction at a
time.
Full-duplex transmission - ANSWERS-A type of data transmission in
which data can move in both directions at the same time.
What two types of transmissions are there in computer networking? -
ANSWERS-Asynchronous and Synchronous
To log off a windows computer which of the following scenarios
would you select?
A: click start button on taskbar, click log off.
B: open excel, select new spreadsheet.
C: push power button until computer shuts off. - ANSWERS-A. Click
start button in taskbar, click log off.
ANSWERS 2026 - 2027
A computer uses _____ to communicate data between its components
- ANSWERS-Buses
If you have a Ethernet cable loose from your router to your computer ,
what layer issue is that a part of? - ANSWERS-Physical
What layer does a router operate in the OSI MODEL ? - ANSWERS-
Network Layer.
What layer does a Hub operate in the OSI MODEL? - ANSWERS-
Physical layer
What layer does a switch operate in the OSI MODEL? - ANSWERS-
Data Link layer
What layer is HTTP, FTP, POP, DNS & SMTP used in OSI model? -
ANSWERS-Application Layer
Which of the following is NOT a physical layer component in the OSI
MODEL?
A: Ethernet Cables
, B: Hub
C: Ethernet Switch
D: cat5 - ANSWERS-C: Ethernet switch , (operates in Data link
layer)
In simplex transmission, - ANSWERS-one-way transmission
Half-duplex transmission - ANSWERS-A type of data transmission in
which data can travel in either direction but only in one direction at a
time.
Full-duplex transmission - ANSWERS-A type of data transmission in
which data can move in both directions at the same time.
What two types of transmissions are there in computer networking? -
ANSWERS-Asynchronous and Synchronous
To log off a windows computer which of the following scenarios
would you select?
A: click start button on taskbar, click log off.
B: open excel, select new spreadsheet.
C: push power button until computer shuts off. - ANSWERS-A. Click
start button in taskbar, click log off.
