NCTI IV ch 7

Which are the well know transmission control protocol (TCP) ports for file transfer protocol (FTP) server control and data? (Choose two.)

20 21

How does the receiver Simple Mail Transfer Protocol (SMTP) respond to the sender SMTP issued Data command?

354 start mail input

Which Quality of Service (QoS( protocols could a network support to provide robust voice over Internet protocol (VoIP) services? (Choose two.)

802.1p , Resource Reservation Protocol (RSVP)

Simple Network Management Protocol (SNMP) structures management information base (MIB) information in which of the following trees?

A Name Tree

Which text file type is the file transfer protocol (FTP) default?

ASCII

Simple Network Management Protocol (SNMP) represents object syntax with a subset of which International Organization for Standardization (ISO) standard?

ASN.1

What is the first step in most client requests?

Address Resolution

Which three of the following are H.323 gatekeeper functions? (Choose three.)

Admissions control, Call signaling , Bandwidth management

When do a Telnet terminal and remote host negotiate options?

After establishing the transmission control protocol (TCP) connection.

What are the common file extensions used to transfer image data in file transfer protocol (FTP)?

Bitmap (.BMP), graphics interchange format (GIF), and joint photography experts group (.JPG or .JPEG).

Which of the following are the three Simple Mail Transfer Protocol (SMTP) mail transfer phases? (Choose three.)

Connection closure, Data transfer, Connection establishment

The concept of a virtual terminal allows for which of the following? (Choose two.)

Connectivity to multiple host computers Multitasking host computers

Which Simple Mail Transfer Protocol (SMTP) command designates that the message's text follows?

DATA

What are some issues that can arise when making a file available for transfer to other users?

Data type, file structure, and transmission mode.

If a hypertext transfer protocol (HTTP) client does not specify a document name in its HTTP request message, what will the HTTP server return in response?

Default Document

Which services does Real-time Transport Protocol (RTP) provide to add reliability to packet voice networks? (Choose three.)

Delivery monitoring, Sequence numbering, Timestamping

Which three of the following are file transfer protocol (FTP) objectives? (Choose three.)

File sharing, Transparent file storage technology, Reliable data transfer

Which two codecs support audio coding at 64 Kbps? (Choose two.)

G.711 , G.722

Which of the following are H.323 audio codecs? (Choose two.)

G.711 , G.728

Which protocol data unit (PDU) type requests that the management agent return attribute values for a list of managed objects?

Getrequest

Which H.323 recommendation protocol handles registration, admission, and status (RAS)?

H.225

Which protocols assist H.323 in controlling and monitoring connections? (Choose two.)

H.225 , H.245

Which Simple Mail Transfer Protocol (SMTP) command identifies the sending host?

HELO

Which three of the following are advantages of remote terminal access (Telnet) over direct terminal-to-host access? (Choose three.)

Increased user productivity Access to multiple, separate sites from the same terminal Reduction in the number of physical terminals

A file transfer protocol (FTP) control port is used by an FTP server to perform which of the following?

Interpret requests from a client.

The Telnet default network virtual terminal (NVT) provides which fundamental characteristics? (Choose three.)

It embeds control commands in the data stream. , The keyboard generates 128 ASCII codes. , It transmits data as a 7-bit ASCII value in an 8-bit field.

How does a transmission control protocol (TCP) application acknowledge the last message's receipt?

It increments the received sequence number by one and sends it in the response message's Acknowledgment Number field.

Which best describes the Telnet single commands options Do (253) code?

It indicates that the sending Telnet desires the other party perform some specified option.

How does virtual terminal protocol (VTP) support remote terminal access?

It provides generic terminal interfaces for data and control transfer.

How does the Telnet network virtual terminal (NVT) support complex terminals?

It supports a 3-byte negotiation sequence.

A web browser client sends a web page request message to a hypertext transfer protocol (HTTP) server. In which order will the server decapsulate the request message?

Network Interface Layer, Internet Layer, Transport Layer, Application Layer.

Which hypertext transfer protocol (HTTP) message request from the client allows it to obtain additional information regarding options and requirements without initiating any actions on the part of the server?

OPTIONS.

You wish to implement voice over Internet protocol (VoIP) services on your existing data network. Part of your plan is to allow telecommuters to call network users from their home public switched telephone network (PSTN) telephones. Which H.323 device must you install in your existing data network to allow for these remote connections?

PSTN GAteway

What is the Telnet character device responsible for displaying incoming data?

Printer

Which choice best describes a Simple Network Management Protocol (SNMP) proxy agent?

Proxy agents translate between SNMP and proprietary management systems.

Which is the file transfer protocol (FTP) command used to place files on an FTP server?

Put

Which command does the sender Simple Mail Transfer Protocol (SMTP) issue to terminate the transmission control protocol (TCP) connection?

QUIT

Which Simple Mail Transfer Protocol (SMTP) command does the sender process use to identify separate recipient mailboxes?

RCPT

What does the packet-based multimedia communications systems, covered by the H.323, cover?

Realtime audio, video, and data communications over Internet protocol (IP) packet networks.

Which best describes using a remote terminal versus direct access to a number of different hosts?

Remote terminal access provides single terminal access to a number of remote hosts.

Which of the following statements concerning Simple Mail Transfer Protocol (SMTP) is correct?

SMTP delivers mail from one computer to another.

Which three of the following are typical network manager components? (Choose three.)

Simple Network Management Protocol (SNMP) engine. , Management information base (MIB) database. , Transport/link

Which three of the following are typical management agent components? (Choose three.)

Simple Network Management Protocol (SNMP) engine. , Transport protocol, Management profile

What is the name of the protocol by which management information for a network element can be inspected or altered by a management station?

Simple Network Management Protocol (SNMP).

Which three modes does file transfer protocol (FTP) use to transfer data? (Choose three.)

Stream , Block , Compressed

Which multimedia protocol specifies a multipoint conferencing transport?

T.120

The Simple Mail Transfer Protocol (SMTP) receiver accepts incoming email on which well known port?

TCP Port 25

Before data can be sent between applications using transmission control protocol (TCP), which of the following must occur?

TCP connection must be established.

Which application protocols does file transfer protocol (FTP) use on its command channel?

Telnet

An H.323 multipoint control unit (MCU) provides which service on a converged network?

Terminal conferencing.

Which combined information triggers a transmission control protocol (TCP) or user datagram protocol (UDP) application to respond to an information request?

The Internet protocol (IP) address and port number.

Which portion of the Simple Network Management Protocol (SNMP) architecture is responsible for implementing SNMP and exchanging messages between the management station and the managed elements?

The SNMP engine.

What component of the packet-based multimedia communications system, covered by the H.323 standard, is considered to be the "brain" of the network?

The gatekeeper.

Question Review Question Review In Simple Network Management Protocol (SNMP), what defines the use of traps?

The network administrator.

Which best describes Telnet's use of subnegotiations?

They can vary in length and format

Which of the following services does Simple Mail Transfer Protocol (SMTP) use?

Transmission control protocol (TCP).

Why does Simple Network Management Protocol (SNMP) use unsolicited messages (traps) from the network elements to poll for appropriate information?

Using traps is consistent with the goal of simplicity and minimizing the amount of traffic generated by the network management function.

Which version of the packet-based multimedia communications system, covered by the H.323 standard, was the first to standardize requirements for communications between a PC-based telephone and a telephone on the switched circuit network (SCN) of the public telephone system?

Version 2.

Which protocol reduces the number of client terminal protocols the remote host must support?

Virtual terminal protocol (VTP).

In Simple Network Management Protocol (SNMP), when do passive management agents take action on their own initiative?

When certain well-defined error conditions occur they generate an unsolicited message called a trap.

When a client connects to a web browser, the first action is typically media access control (MAC) address resolution. Under what circumstance may address resolution be bypassed?

When the client has recently made a request to the same server.

Which Telnet single command option code tells the requestor that the remote will not perform the option?

Won't (252).