Module H4: Transport Layer Protocol Flashcards by Harold Quang

What is the size range for a tcp header? (Use format xxxx - xxxx)

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What flag is used to acknowledge packets were received?

ack

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What flag is used to immediately forward data even if more data is coming?

URG

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What flag is used to terminate the connection if the sender suspects something is off?

RST

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What flag is used to terminate the connection?

FIN

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What is a lightweight protocol that works on top of IP?

udp

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How many bytes is a UDP header?

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What do the first four bytes of the UDP header store?

Buffer Space
Window Size
Port Numbers
MTU
Header Length

Port Numbers

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TCP supports Broadcasting.

True / False

False

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TCP is _____ oriented.

Encryption
Connection
Connection-less
Port
Protocol

Connection

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UDP is ______ oriented.

Encryption
Connection
Connection-less
Port
Protocol

Connection-less

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DNS, DHCP and VoIP all employ what protocol?

TCP
UDP
ICMP
DNS

UDP

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Sequencing occurs in UDP\

True / False

False

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What do TCP and UDP use in order to find target applications?

Port Numbers
Magic
Key Coding
Sequence Numbers

Port Numbers

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What does UDP rely on in order to perform segmentation?

application

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What is assigned by the host to each TCP packet?

Bigaole
Mac Address Translation
Port Reference ID
Sequence Number

Sequence Number

What are the primary information units on the internet?

Connections
Protocols
Datagrams
Ports

Datagrams

What is the range of well known port numbers? (Use format: xxx - xxx)

0-1024
1-1024
0-1023
1-1023
20-1024
0-65535
0-65536
1-65536

0-1023

Which layer does the transport layer receive packets from?

Network layer / Layer 3
Transport Layer / Layer 4
Session Layer / Layer 5
Data Link Layer / Layer 2

Network

A network IP address and a port address together are considered what?

GOSIP
Kludge
Socket
Full-Duplex
Jacket

Socket

When chunks of data are gathered and attached to header information in order to create segments, what is this process called?

Segmentation
Guard Band
Multiplexing
Oscillation

Multiplexing

When a received packet is directed to the proper IP address and port, what is this process called?

demultiplexing

What is it called when many packets are sent without first waiting for an acknowledgement?

Pipelining

What flag is used to signal the data needs to be immediately sent?

PSH

What is it called when the receiver in a TCP connection needs to control how much data is sent at a time? * Throttle * Load Control * Slewing Rate * Flow control

Flow Control

What is byte 0 on the TCP header?

source port

What is the BPF to filter for “Destination Port” in the TCP header?

tcp[2:2]

What is the BPF to filter for TCP flags in the TCP header?

tcp[13]

What is the BPF to filter for “Source Port” in the UDP header?

udp[0:2]

What is the BPF using tcpdump to filter for the SYN flag?

tcp[13]=2

What is the BPF using TCP dump to filter for the SYN and ACK flag? Enter syntax only, from "tcpdump" to the end of the BPF filter with spaces and single or double quotations.

tcpdump ‘tcp[13]=18’

Using the TCP Header, what field starts at byte 2? * Source Port * Source Address * Destination Port * Destination Address

Destination Port

Bit-wise masking is a must in order to filter for TCP Flags? True False

True