Physical Layer Computer Networks Questions & Answers
1.
The physical layer concerns with
A.)
bit-by-bit delivery
B.)
process to process delivery
C.)
application to application delivery
D.)
none of these
Answer: Option 'A'
bit-by-bit delivery
2.
Bits can be send over guided and unguided media as analog signal by
A.)
digital modulation
B.)
amplitude modulation
C.)
frequency modulation
D.)
phase modulation
Answer: Option 'A'
digital modulation
3.
Which transmission media has the highest transmission speed in a network?
A.)
twisted pair cable
B.)
coaxial cable
C.)
optical fiber
D.)
electrical cable
Answer: Option 'C'
optical fiber
4.
The portion of physical layer that interfaces with the media access control sublayer is called
A.)
physical data sublayer
B.)
physical signalling sublayer
C.)
physical address sublayer
D.)
none of these
Answer: Option 'B'
physical signalling sublayer
5.
In asynchronous serial communication the physical layer provides
A.)
start and stop signalling
B.)
flow control
C.)
both (a) and (b)
D.)
none of these
Answer: Option 'C'
both (a) and (b)
6.
physical layer provides
A.)
mechanical specifications of electrical connectors and cables
B.)
electrical specification of transmission line signal level
C.)
specification for IR over optical fiber
D.)
all of these
Answer: Option 'D'
all of these
7.
Wireless transmission can be done via
A.)
radio waves
B.)
microwaves
C.)
infrared
D.)
all of these
Answer: Option 'D'
all of these
8.
The physical layer translates logical communication requests from the ______ into hardware specific operations.
A.)
network layer
B.)
data link layer
C.)
trasnport layer
D.)
application layer
Answer: Option 'B'
data link layer
9.
The physical layer is responsible for
A.)
line coding
B.)
modulation
C.)
channel coding
D.)
all of these
Answer: Option 'D'
all of these
- Basics Computer Networks Question and Answers
- Reference Models
- Physical Layer
- Data Link Layer
- Network Layer
- Transport Layer
- Application Layer
- DNS
- Telnet
- World Wide Web
- HTTP and FTP
- Ethernet
- Wireless LAN
- WiMAX
- Bluetooth
- ATM Frame Relay
- Access Networks
- Physical Media
- Multiplexing
- Topology
- Packet Switching & Circuit Switching
- SONET
- Internet
- Cryptography
- Security In The Internet
- Delays and Loss
- Network Attacks
- DHCP
- SMTP
- FTP
10.
A single channel is shared by multiple signals by
A.)
analog modulation
B.)
multiplexing
C.)
digital modulation
D.)
none of these
Answer: Option 'B'
multiplexing
Physical Layer Download Pdf
Recent Posts
- FTP - Computer Networks Questions and Answers
- SMTP - Computer Networks Questions and Answers
- DHCP - Computer Networks Questions and Answers
- Network Attacks - Computer Networks Questions and Answers
- Delays and Loss - Computer Networks Questions and Answers
- Security In The Internet - Computer Networks Questions and Answers
- Cryptography - Computer Networks Questions and Answers
- Internet - Computer Networks Questions and Answers
- SONET - Computer Networks Questions and Answers
- Packet Switching & Circuit Switching - Computer Networks Questions and Answers
- Topology - Computer Networks Questions and Answers
- Multiplexing - Computer Networks Questions and Answers
- Physical Media - Computer Networks Questions and Answers
- Access Networks - Computer Networks Questions and Answers
- ATM & Frame Relay - Computer Networks Questions and Answers
- Bluetooth - Computer Networks Questions and Answers
- WiMAX - Computer Networks Questions and Answers
- Wireless LAN - Computer Networks Questions and Answers
- Ethernet - Computer Networks Questions and Answers
- HTTP and FTP - Computer Networks Questions and Answers
- World Wide Web - Computer Networks Questions and Answers
- Telnet - Computer Networks Questions and Answers
- DNS - Computer Networks Questions and Answers
- Application Layer - Networks Questions and Answers
- Transport Layer Computer Networks Questions and Answers
- Network Layer Computer Networks Questions and Answers
- Data Link Layer Computer Networks Questions and Answers
- Physical Layer Computer Networks Questions & Answers
- Reference Models Computer Networks
- Basic Computer - Networks Questions and Answers
RRB NTPC and RRB Group D Model Papers in Telugu
- RRB NTPC and RRB Group D Free Model Papers in Tamil Telugu Hindi and English
- Current Affairs in Telugu - RRB NTPC and RRB Group D Model Papers in Telugu
- Arithmetic and Maths in Telugu MCQs - RRB NTPC and RRB Group D Model Papers in Telugu
- Biology MCQs - RRB NTPC and RRB Group D Model Papers in Telugu
- Reasoning Practice Tests in Telugu - RRB NTPC and RRB Group D Model Papers in Telugu
- Science and Technology MCQs - RRB NTPC and RRB Group D Model Papers in Telugu
- Chemistry MCQs in Telugu - RRB NTPC and RRB Group D Model Papers in Telugu
- Physics MCQs in Telugu - RRB NTPC and RRB Group D Model Papers in Telugu
- Indian Polity - Constitution & Administration in Telugu - RRB NTPC and RRB Group D Model Papers in Telugu
- Indian Geography in Telugu MCQs - RRB NTPC and RRB Group D Model Papers in Telugu
- Andhra Pradesh - Geography in Telugu - RRB NTPC and RRB Group D Model Papers in Telugu
- General Knowledge MCQs - RRB NTPC and RRB Group D Model Papers in Telugu
- General Studies in Telugu - APPSC TSPSC UPSC - MCQs
- Andhra Pradesh Economics Question and Answers - MCQs