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Module H: Protocol Analysis > Module H4: Transport Layer Protocol > Flashcards

Module H4: Transport Layer Protocol Flashcards

1
Q

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

A
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2
Q

What flag is used to acknowledge packets were received?

A

ack

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3
Q

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

A

URG

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4
Q

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

A

RST

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5
Q

What flag is used to terminate the connection?

A

FIN

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6
Q

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

A

udp

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7
Q

How many bytes is a UDP header?

  • 4
  • 2
  • 16
  • 8
  • 1
A

8

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8
Q

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

  • Buffer Space
  • Window Size
  • Port Numbers
  • MTU
  • Header Length
A

Port Numbers

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9
Q

TCP supports Broadcasting.

True / False

A

False

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10
Q

TCP is _____ oriented.

  • Encryption
  • Connection
  • Connection-less
  • Port
  • Protocol
A

Connection

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11
Q

UDP is ______ oriented.

  • Encryption
  • Connection
  • Connection-less
  • Port
  • Protocol
A

Connection-less

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12
Q

DNS, DHCP and VoIP all employ what protocol?

  • TCP
  • UDP
  • ICMP
  • DNS
A

UDP

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13
Q

Sequencing occurs in UDP\

True / False

A

False

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14
Q

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

  • Port Numbers
  • Magic
  • Key Coding
  • Sequence Numbers
A

Port Numbers

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15
Q

What does UDP rely on in order to perform segmentation?

A

application

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16
Q

What is assigned by the host to each TCP packet?

  • Bigaole
  • Mac Address Translation
  • Port Reference ID
  • Sequence Number
A

Sequence Number

17
Q

What are the primary information units on the internet?

  • Connections
  • Protocols
  • Datagrams
  • Ports
A

Datagrams

18
Q

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
A

0-1023

19
Q

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
A

Network

20
Q

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

  • GOSIP
  • Kludge
  • Socket
  • Full-Duplex
  • Jacket
A

Socket

21
Q

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
A

Multiplexing

22
Q

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

A

demultiplexing

23
Q

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

A

Pipelining

24
Q

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

A

PSH

25
Q

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
A

Flow Control

26
Q

What is byte 0 on the TCP header?

A

source port

27
Q

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

A

tcp[2:2]

28
Q

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

A

tcp[13]

29
Q

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

A

udp[0:2]

30
Q

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

A

tcp[13]=2

31
Q

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.

A

tcpdump ‘tcp[13]=18’

32
Q

Using the TCP Header, what field starts at byte 2?

  • Source Port
  • Source Address
  • Destination Port
  • Destination Address
A

Destination Port

33
Q

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

True

False

A

True

Module H: Protocol Analysis (6 decks)

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