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- What is the full form of TCP?
a. Transmission Control Protocol
b. Transfer Control Protocol
c. Technology Control Protocol
d. Transfer Communication Protocol
Answer: a. Transmission Control Protocolindiabix+1 - How many layers are there in the TCP/IP model?
a. 3
b. 4
c. 5
d. 7
Answer: b. 4testbook+1 - Which layer of the TCP/IP model is responsible for logical addressing?
a. Application
b. Transport
c. Internet
d. Network Access
Answer: c. Internettestbook - Which protocol works at the Transport layer of TCP/IP?
a. HTTP
b. TCP
c. IP
d. Ethernet
Answer: b. TCPtestbook - Which protocol is connection-oriented?
a. UDP
b. FTP
c. TCP
d. IP
Answer: c. TCPtestbook - Which protocol provides an unreliable communication service?
a. TCP
b. UDP
c. FTP
d. SMTP
Answer: b. UDPtestbook - What is the unit of data at the Transport layer in TCP/IP?
a. Datagram
b. Segment
c. Frame
d. Bit
Answer: b. Segmenttestbook - Which of the following uses port 80 by default?
a. FTP
b. SMTP
c. HTTP
d. SSH
Answer: c. HTTPtestbook - Which address format does IPv4 use?
a. Hexadecimal
b. Binary
c. Dotted decimal
d. Octal
Answer: c. Dotted decimaltestbook - Which layer of TCP/IP is responsible for routing packets?
a. Application
b. Transport
c. Internet
d. Network Access
Answer: c. Internettestbook - The full form of IP is:
a. Internal Protocol
b. Internet Protocol
c. International Protocol
d. Intermediate Protocol
Answer: b. Internet Protocoltestbook - The checksum field in a TCP header is used for:
a. Encryption
b. Error-checking
c. Routing
d. Flow control
Answer: b. Error-checkingtestbook - Which of the following is NOT a layer in the TCP/IP model?
a. Network Access
b. Internet
c. Presentation
d. Transport
Answer: c. Presentationtestbook - Which protocol is used to send emails?
a. HTTP
b. SMTP
c. FTP
d. SNMP
Answer: b. SMTPindiabix - Data is sent as a stream of ____ in TCP.
a. Packets
b. Bytes
c. Bits
d. Frames
Answer: b. Bytestestbook - Which protocol is commonly used for file transfers?
a. Telnet
b. FTP
c. HTTP
d. SSH
Answer: b. FTPindiabix - Which field in a TCP segment specifies the number of bytes the receiver is willing to receive?
a. Sequence number
b. Window
c. Flag
d. Options
Answer: b. Windowtestbook - The process of dividing large messages into smaller segments is called:
a. Framing
b. Encapsulation
c. Segmentation
d. Tunneling
Answer: c. Segmentationtestbook - DHCP provides:
a. File transfer
b. IP addressing
c. Email
d. Security
Answer: b. IP addressingindiabix - Which part of the TCP/IP model corresponds to the OSI Data Link and Physical layers?
a. Application
b. Internet
c. Network Access
d. Transport
Answer: c. Network Accesstestbook - Which protocol is used for secure remote access?
a. DNS
b. SSH
c. SMTP
d. DHCP
Answer: b. SSHindiabix - The default port for HTTPS is:
a. 20
b. 25
c. 22
d. 443
Answer: d. 443testbook - Which of the following is a connectionless protocol?
a. TCP
b. UDP
c. SMTP
d. POP3
Answer: b. UDPtestbook - The size of the source port field in a TCP header is:
a. 8 bits
b. 16 bits
c. 32 bits
d. 64 bits
Answer: b. 16 bitstestbook - Which protocol is primarily used for domain name resolution?
a. FTP
b. DNS
c. SMTP
d. ARP
Answer: b. DNSindiabix - Which technique does TCP use to establish a connection?
a. Three-way handshake
b. Four-way handshake
c. Two-way handshake
d. Five-way handshake
Answer: a. Three-way handshaketestbook - Which layer of TCP/IP ensures end-to-end delivery of packets?
a. Application
b. Internet
c. Transport
d. Network Access
Answer: c. Transporttestbook - What is the default port for FTP control?
a. 23
b. 21
c. 20
d. 22
Answer: b. 21indiabix - What does ARP stand for?
a. Address Routing Protocol
b. Address Resolution Protocol
c. Advanced Routing Protocol
d. Automatic Routing Protocol
Answer: b. Address Resolution Protocolindiabix - Which protocol translates domain names into IP addresses?
a. DHCP
b. DNS
c. FTP
d. TCP
Answer: b. DNSindiabix - Which field in TCP header is 32 bits long?
a. Source port
b. Sequence number
c. Flags
d. Window
Answer: b. Sequence numbertestbook - UDP does NOT provide:
a. Connection establishment
b. Checksumming
c. Multicasting
d. Error detection
Answer: a. Connection establishmenttestbook - Which protocol uses SYN and ACK flags?
a. UDP
b. IP
c. TCP
d. FTP
Answer: c. TCPtestbook - The main transport protocols in the Internet are:
a. IP and ICMP
b. TCP and UDP
c. FTP and SMTP
d. HTTP and DNS
Answer: b. TCP and UDPtestbook - Which of the following is NOT true about UDP?
a. It is connectionless
b. It provides error recovery
c. It has low overhead
d. It is used for DNS and streaming
Answer: b. It provides error recoverytestbook - The main purpose of DHCP is to:
a. Discover MAC address
b. Assign IP addresses
c. Provide encrypted communication
d. Route packets
Answer: b. Assign IP addressesindiabix - The maximum size of a TCP header without options is:
a. 16 bytes
b. 20 bytes
c. 24 bytes
d. 32 bytes
Answer: b. 20 bytestestbook - Which protocol is used for web browsing?
a. SMTP
b. FTP
c. HTTP
d. POP3
Answer: c. HTTPindiabix - The internet protocol that operates at the Internet layer is:
a. UDP
b. ICMP
c. IPv4
d. Telnet
Answer: c. IPv4testbook - A SYN flood attack targets:
a. DNS
b. FTP
c. TCP handshake
d. UDP broadcast
Answer: c. TCP handshaketestbook - Which timer in TCP handles zero-window size situations?
a. Retransmission
b. Keep-alive
c. Persist
d. SYN
Answer: c. Persisttestbook - The default port for SMTP is:
a. 80
b. 23
c. 25
d. 110
Answer: c. 25indiabix - Which field identifies the receiver’s process in TCP?
a. Source IP
b. Destination port
c. Flag
d. Sequence number
Answer: b. Destination porttestbook - Connectionless communication is best provided by:
a. TCP
b. UDP
c. SMTP
d. FTP
Answer: b. UDPtestbook - What is fragmentation in Networking?
a. Dividing data into smaller parts
b. Encrypting data
c. Compressing data
d. Multiplexing
Answer: a. Dividing data into smaller partstestbook - In TCP, retransmission is triggered by:
a. Timeout
b. Window size
c. Acknowledgement
d. None of the above
Answer: a. Timeouttestbook - What is the purpose of the ACK flag in TCP?
a. To synchronize
b. To acknowledge receipt
c. To terminate connection
d. To control congestion
Answer: b. To acknowledge receipttestbook - Which device operates at the Data-Link layer of OSI?
a. Router
b. Bridge
c. Switch
d. Repeater
Answer: b. Bridgetestbook - The maximum segment size (MSS) option in TCP specifies:
a. Buffer size
b. Maximum data field size
c. Header length
d. Sliding window size
Answer: b. Maximum data field sizetestbook - Which attack establishes numerous half-open TCP connections?
a. Flooding
b. Smurf
c. SYN flooding
d. Ping of death
Answer: c. SYN floodingtestbook
