p333

This message type is used when uploading data files to a web server.

POST

What TCP mechanism is used to enhance performance by allowing a device to continuously send a steady stream of segments as long as the device is also receiving necessary acknowledgements?

Sliding window

Which of the following would be valid source and destination ports for a host connecting to a DNS server?

Source: 49152 , Destination: 53

Which of the following would be valid source and destination ports for a host connecting to an email server?

Source: 49152, Destination: 25

Which transport layer protocol ensures reliable same-order delivery?

TCP

Which transport layer feature is used to establish a connection-oriented session?

TCP 3-way handshake

What is the complete range of TCP and UDP well-known ports?

0 to 1023

Assume a host with IP address 10.1.1.10 wants to request web services from a server at 10.1.1.254. Which of the following would display the correct socket pair?

10.1.1.10:1099, 10.1.1.254:80

Which number or set of numbers represents a socket?

192.168.1.1:80

How many connections are required by FTP between client and server?

2

Which of the following DNS record types is used to resolve IPv6 addresses?

AAAA

Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)

ACK / SYN

This layer of the OSI model is concerned with the protocols that exchange data between programs running on hosts.

Application

These three OSI layers define the same functions as the TCP/IP model application layer.

Application / presentation / session

What type of applications are best suited for using UDP?

Applications that are sensitive to delay

Which peer-to-peer application allows users to share pieces of many files with each other at the same time?

BitTorrent

Which two are protocols that belong in the OSI application layer?

DNS / SMTP

Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)

DNS / VoIP

Which two fields are the same in a TCP and UDP header? (Choose two.)

Destination port number / source port number

How does a networked server manage requests from multiple clients for different services?

Each request has a combination of source and destination port numbers, coming from a unique ip address

This is a function of the OSI session layer.

Exchange of information to initiate dialog between peers

Which two applications would use the TCP transport layer protocol? (Choose two.)

FTP / HTTP

True or false? A DNS server that receives a request for a name resolution that is not within its DNS zone will send a failure message to the requesting client.

False

True or false? HTTP is a secure protocol.

False

True or false? The peer-to-peer networking model requires the implementation of a dedicated server for data access.

False

How many exchanges are needed to end both sessions between two hosts?

Four exchanges

This protocol is used by a web browser to establish a connection to a web server.

HTTP

Which TCP header statement is true?

It consists of 10 fields in a 20-byte header

Which UDP header statement is true?

It consists of 4 fields in an 8-byte header

Which is a feature of IMAP?

It downloads a copy of email messages leaving the original on the server

Why is UDP desirable for protocols that make a simple request and reply transactions?

Low overhead

Which of the following DNS resource record types resolves authoritative name servers?

NS

What message is sent by a host to check the uniqueness of an IPv6 address before using that address?

Neighbor solicitation

Which Windows command would display the protocols in use, the local address and port numbers, the foreign address and port numbers, and the connection state?

Netstat

MKV, GIF, and JPG standards are associated with which OSI layer?

Presentation

This protocol is used by a client to send email to a mail server.

SMTP

Which control bit flags are used during the three-way handshake?

SYN and ACK

What field is used by the destination host to reassemble segments into the original order?

Sequence number

Which two applications would use the UDP transport layer protocol? (Choose two.)

TFTP / VoIP

Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer?

The client randomly selects a source port number

What is a socket?

The combination of a source ip address and port number or destination ip address and port number

Which of the following is displayed by the nslookup utility?

The configured default DNS server

What happens if part of an FTP message is not delivered to the destination?

The part of the FTP message that was lost Is re-sent

What happens when a sending host senses there is congestion?

The sending host reduces the number of bytes it sends before receiving an acknowledgement from the destination host

Network congestion has resulted in the source learning of the loss of TCP segments that were sent to the destination. What is one way that the TCP protocol addresses this?

The source decreases the amount of data that it transmits before it receives an acknowledgement from the destination

What is the purpose of using a source port number in a TCP communication?

To keep track of multiple conversations between devices

A network administrator can successfully ping the server at CISCO WEBSITE, but cannot ping the company web server located at an ISP in another city. Which tool or command would help identify the specific router where the packet was lost or delayed?

Traceroute

What is a responsibility of transport layer protocols?

Tracking individual conversations

Which layer is responsible for establishing a temporary communication session between the source and destination host applications?

Transport layer

True or false? In a peer-to-peer network environment every peer can function as both a client and a server.

True

Which of the following is a stateless best-effort delivery transport layer protocol?

UDP

Which transport layer protocol statement is true?

UDP is a best effort delivery protocol

Which UDP datagram reassembly statement is true?

UDP reassembles the data in the order that it was received

Which transport layer protocol would be used for VoIP applications?

User datagram protocol (UDP)

Which of the following is a feature of the Gnutella protocol?

Users can share whole files with other users

Which port group includes port numbers for FTP, HTTP, and TFTP applications?

Well known ports

What field is used to provide flow control?

Window size

Which two operations are provided by TCP but not by UDP? (Choose two.)

acknowledgment received data / retransmitting any unacknowledged data

Which three are transport layer responsibilities? (Choose three.)

conversation multiplexing / segmenting data and reassembling segments / tracking individual conversation