Exam 3 study

Which protocol is responsible for determining the MAC address associated with each IP address and keeping a table of its results?

ARP

the TCP/IP _____ layer supports network applications and may include presentation services.

Application

______ is concerned with preventing overall degradation of service when the demand for resources by hosts exceeds the supply available in the network.

Congestion control

Which of the following is a function of the Application layer?

Data formatting and translation

The ___ is a large, distributed database of internet addresses and domain names.

Domain Name System(DNS)

What queuing discipline(s) govern how packets are buffered while waiting to be transmitted. 9check all that apply).

FIFO, FQ

Which protocol uses TCP port 21 be default?

FTP

IP is the protocol used by most networks and network applications to create an error-free end-to-end network connection.

False

In a host-centric design, each router takes responsibility for deciding when packets are forwarded and selecting which packets are to be dropped.

False

Rate-based control is a resource allocation mechanism in which the receiver advertises a window to the sender.

False

The Hypertext Transer Protocol, or HTTP, is a transport later protocol.

False

The internet recognizse URLs directly.

False

The window field of the TCP header connot be set to zero.

False

______ sometimes triggers the retransmission of a dropped packet sooner than the regular timeout mechanism.

Fast retransmit

______ resource allocation is a mechanism that allows end hosts to send data without first reserving any capacity and then adjust their sending rate according to the feedback they receive.

Feedback-Based

To Transfer Web pages, the internet uses the____.

Hypertext Transfer Protocol(HTTP)

Which of the following is a Transport layer protocol? (Choose all that apply.)

ICMP, TCP, DHCP, UDP

____ is a client/server protocol in which e-mail is received and held for you at your internet server.

Internet Message Access Protocol(IMAP)

An e-mail program creates a(n) ____ document and attaches it to the e-mail message.

Multipurpose Internet Mail Extensions (MIME)

In which layer does Ethernet operate?

Network

_______ is the software that allows the user to save e-mail messages in a server mailbox and download them when desired from the server.

POP3

______ is the ratio of throughput to delay used as a metric for evaluating the effectiveness of a resource allocation scheme.

Power

______are sets of rules and procedures that dictate communication and behavior.

Protocols

Which Application layer protocol is used for file-sharing? (Choose all that apply.)

SMB, NFS

What is the first segment in the three-way handshake?

SYN

____ involves the continuous download of a compressed audio or video file, which can then be heard or viewed on the user's workstation.

Streaming audio and video

Which of the following is NOT an Application layer protocol?

TCP

Which protocol is connection-oriented?

TCP

A resource allocation mechanism is determined good or poor by measuring how a network effectively and fairly allocates its resources.

True

Every device that has a connection to the internet is asigned an IP address.

True

Packets are dropped when router queues overflow.

True

Slow start effectively decreases the congestion window exponentially, rather than linearly.

True

TCP's congestion controls for both the connection's own benefit (to improve its throughput) and the benefit of other connections as well (which may result in our connection reducing its own throughput).

True

TCP's congestion-control mechanisms are window based.

True

The File Transfer Protocol, or FTP, was one of the first services offered on the internet.

True

The TCP Congestion Control strategy is to send packets into the network without a reservation and then to react to observable events that occur.

True

The Transport layer uses port numbers to identify the source and destination Application-layer protocol of the data that it contains.

True

The problem with priority queuing is that the high-priority queue can starve out all the other queues.

True

When the user wants to send an e-mail message, the e-mail program takes the e-mail message and passes it to the transport layer of the software.

True

the ___________ is a vast collection of electronic documents that are located on many different Web servers and contain text and images that can be accessed by simply clicking links within a browser's web page

World Wide Web

After the network layer places its header on a datagram, what is the unit of information is referred to?

packet

Fair queuing (FQ) is an algorithm that has been designed to address packet loss. The idea of FQ is to maintain a separate queue for each flow currently being handled by the router. The router then services these queues in a sort of ______ approach.

round-robin

The Transport layer deals with which unit of information?

segment

Which of the following is a feature of TCP? (Choose all that apply.)

segments data into chunks, converts signals into bits, provides data-formatting services, ensures flow control

TCP establishes a connection with the destination device using which process?

three-way handshake

What does TCP use to provide flow control?

window size