TCP & UDP Protocols Flashcards

1
Q

Which layer of the OSI model does the IP protocol run at?

Layer 2

Layer 3

Layer 4

A

Layer 3

The IP protocol is responsible for logical addressing and routing, which is a function of layer 3 of the OSI model

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2
Q

Which of the following protocols are layer-4 protocols? (Choose all that apply.)

TCP

IP

ARP

UDP

A

TCP

UDP

TCP and UDP are transport protocols. TCP is responsible for connection-oriented communication and error-free delivery, whereas UDP is responsible for connectionless communication

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3
Q

Which protocol is responsible for converting the IP address to a MAC address?

IP

TCP

ARP

A

ARP

he Address Resolution Protocol (ARP) is responsible for converting an IP address to a MAC address so that communication can occur

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4
Q

Which protocol is responsible for sending e-mail across the Internet?

POP3

IMAP4

SMTP

A

SMTP

The Simple Mail Transport Protocol (SMTP) is responsible for sending mail across the Internet

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5
Q

Which protocol is responsible for connection-oriented communication?

TCP

IP

UDP

A

TCP

TCP is responsible for connection-oriented communication in the TCP/IP protocol suite

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6
Q

Which protocol is responsible for error reporting and status information?

ICMP

TCP

UDP

A

ICMP

ICMP is responsible for reporting errors and sending back status information when communicating over TCP/IP

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7
Q

Which protocol is responsible for logical addressing and delivery of packets?

ICMP

TCP

IP

A

IP

IP is responsible for packet delivery and logical addressing

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8
Q

Jeff is one of the network administrators in your office and he says that he noticed his Windows 8 desktop has a link-local address assigned. Which of the following addresses is his Windows 8 system using?

::1

fe80: :b596:cafa:5ea1:cbf0
2001: :b596:cafa:5ea1:cbf0

A

fe80::b596:cafa:5ea1:cbf0

A link-local address is automatically assigned to a Windows 8 system and is an address that starts with fe80

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9
Q

How many bits in an IPv6 address?

128 bits

32 bits

48 bits

A

128 bits

An IPv6 address is made up of 128 bits that are organized into 16-bit blocks separated by a colon (:). Each 16-bit block is made up of a 4-bit hexadecimal character. An example IPv6 address is fe80:0000:0000:0000:b596:cafa:5ea1:cbf0

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10
Q

Which of the following represents an IPv6 global address?

::1

fe80: :b596:cafa:5ea1:cbf0
2001: :b596:cafa:5ea1:cbf0

A

2001::b596:cafa:5ea1:cbf0

A global address in IPv6 is equivalent to an IPv4 public address and has 2001 as a prefix

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11
Q

Which of the following tunneling protocols would you use to tunnel IPv6 packets in an IPv4 packet when sitting behind a NAT device?

ISATAP

4to6

Teredo

A

Teredo

Teredo is a tunneling protocol that works behind a NAT device when tunneling IPv6 packets inside IPv4 packets

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12
Q

Which of the following identify benefits of IPv6 over IPv4? (Choose three.)

Auto-configuration

Decreased address space

No broadcast messages

Increased address space

More broadcast messages

A

Auto-configuration

No broadcast messages

Increased address space

There are a number of benefits to IPv6, such as auto-configuration, no broadcast messages, and increased address space

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13
Q

Which network service is responsible for allowing Microsoft clients access to the file system on a UNIX server?

NFS

SMB

Samba

A

Samba

Samba is responsible for allowing Microsoft clients to access resources on the UNIX system because Samba implements the SMB protocol

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14
Q

Which network service is responsible for assigning IP addresses to clients on the network?

NAT

WINS

DHCP

A

DHCP

DHCP is responsible for assigning IP addresses to clients on the network

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15
Q

Which network service is responsible for allowing Microsoft clients to access the file system on Microsoft servers?

SMB

NFS

NAT

A

SMB

SMB is the protocol in Microsoft environments that allows Microsoft clients to connect to the file system of other Microsoft systems

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16
Q

Which network service is responsible for hiding internal network resources by changing the source address of every outbound packet?

NAT

NFS

SMB

A

NAT

NAT is used to translate the source address of an outgoing packet to that of the external interface of the NAT server