cisco chapter 14 final
What is the complete range of TCP and UDP well-known ports?
0 to 1023
Which number or set of numbers represents a socket?
192.168.1.1:80
Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)
DNS and VoiP
Which two applications would use the TCP transport layer protocol? (Choose two.)
FTP and 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 control bit flags are used during the three-way handshake?
SYN and ACK
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
Which two applications would use the UDP transport layer protocol? (Choose two.)
TFTP and VoiP
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
What type of applications are best suited for using UDP?
applications that are sensitive to delay
Which two fields are the same in a TCP and UDP header? (Choose two.)
destination port number and 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
How many exchanges are needed to end both sessions between two hosts?
four exchanges
Why is UDP desirable for protocols that make a simple request and reply transactions?
low overhead
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
What field is used by the destination host to reassemble segments into the original order?
sequence number
What happens if part of an FTP message is not delivered to the destination?
the part of the FTP message that was lost re-sent
What is the purpose of using a source port number in a TCP communication?
to keep track of multiple conversations between devices
What is a responsibility of transport layer protocols?
tracking individual conversations
Which three are transport layer responsibilities? (Choose three.)
tracking individual conversations, conversation multiplexing, and segmenting data and reasembling segments
Which layer is responsible for establishing a temporary communication session between the source and destination host applications?
transport layer
Which transport layer protocol would be used for VoIP applications?
user datagram protocol UDP
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 flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)
ACK and SYN
Which of the following is a stateless best-effort delivery transport layer protocol?
UDP
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 an email server?
source : 49152, destination : 25
Which of the following would be valid source and destination ports for a host connecting to a DNS server?
source : 49152, destination : 53
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 a destination IP address and port number
