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web.groovymark@gmail.com
- November 24, 2024
Question 41
Examples of OSI session layer protocols include?
a) TCP and UDP
b) HTTP and HTTPS
c) NFS and SQL
d) IP and ICMP
Correct Answer: c) NFS and SQL
Explanation: The session layer handles functions like NFS (Network File System) and SQL (Structured Query Language).
Question 42
The presentation layer is responsible for?
a) Data encryption and compression
b) Routing
c) Physical connection
d) Error correction
Correct Answer: a) Data encryption and compression
Explanation: The presentation layer translates and formats data and handles encryption and compression.
Question 43
ASCII and JPEG are examples of which OSI layer?
a) Physical
b) Data link
c) Presentation
d) Session
Correct Answer: c) Presentation
Explanation: ASCII and JPEG operate at the presentation layer, formatting data for applications.
Question 44
The application layer interacts with?
a) Network hardware
b) Operating system
c) User applications
d) Encryption protocols
Correct Answer: c) User applications
Explanation: The application layer interacts directly with user applications, such as web browsers and email clients.
Question 45
Examples of application layer protocols include?
a) IP and ICMP
b) FTP, HTTP, SMTP
c) TCP and UDP
d) Ethernet
Correct Answer: b) FTP, HTTP, SMTP
Explanation: FTP, HTTP, and SMTP are protocols at the application layer of the OSI model.
Question 46
What is the first step in isolating a network problem?
a) Check the physical connection
b) Reboot the router
c) Ping the server
d) Reset IP addresses
Correct Answer: a) Check the physical connection
Explanation: The first step is to check if the physical connection to the machine is down.
Question 47
A timed-out response from a ping indicates?
a) Server is busy
b) Network connection is down
c) Data transmission delay
d) Incorrect IP address
Correct Answer: b) Network connection is down
Explanation: A request timed-out response means the network connection is unavailable.
Question 48
The function of the data link layer is to provide?
a) Error-free transmission using MAC addresses
b) Packet routing
c) Data compression
d) Application data formatting
Correct Answer: a) Error-free transmission using MAC addresses
Explanation: The data link layer ensures data is transmitted without errors using MAC addresses.
Question 49
What is the function of the network layer?
a) Data encryption
b) Error detection
c) Routing decisions
d) Data formatting
Correct Answer: c) Routing decisions
Explanation: The network layer is responsible for making routing decisions for data packets.
Question 50
The function of the transport layer is to?
a) Ensure error-free packet delivery
b) Encrypt data
c) Assign IP addresses
d) Control network traffic
Correct Answer: a) Ensure error-free packet delivery
Explanation: The transport layer ensures the integrity of data packets during transmission.
