Which of the following protocol is used to retrieve emails?

NETWORKING - APPLICATION LAYER PROTOCOLS MCQ

• In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between the same client and the server. Which one is that?
• Which of the following is/are example(s) of stateful application layer protocols?
• Which of the following is the Application layer protocol in Internet Protocol Suite?
• The Application layer in TCP/IP contains the ___________ protocols
• Which of the following is the Application layer protocol in OSI model?
• Identify the correct order in which the following actions take place in an interaction between a web browser and a web server
• What does HTTPS stands for?
• Which of the following protocol is used to retrieve emails?
• Which of the following protocol is used to send email?
• Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from local host to remote host?
• Application layer protocol defines
• Which one of the following protocol delivers/stores mail to receiver server?
• The ASCII encoding of binary data is called
• Which one of the following is not an application layer protocol?
• Which protocol is a signalling communication protocol used for controlling multimedia communication sessions?
• Which one of the following is not correct?
• When displaying a web page, the application layer uses the
• This is not a application layer protocol
• The chunk of information at the application layer is called
• Electronic mail uses this Application layer protocol
• Which of the following is/are Protocols of Application layer?
• This is an application protocol that uses the Internet's TCP/IP protocols to transfer Web page files to a server. It\'s also used to download programs and other files from a server to your computer
• Telnet protocol is used to establish a connection to
• Which one of the following is false?
• All telnet operations are sent as
• AbsoluteTelnet is a telnet client for
• The decimal code of interpret as command (IAC) character is
• In character mode operation of telnet implementation
• In telnet, the client echoes the character on the screen but does not send it until a whole line is completed in
• Which one of the following is not correct regarding telent?
• Which operating mode of telnet is full duplex?
• If we want that a character be interpreted by the client instead of server
• The protocol used by Telnet application is
• ______ allows you to connect and login to a remote computer
• The correct syntax for accessing the telnet is
• Multiple object can be sent over a TCP connection between client and server in
• HTTP is ________ protocol
• In the network HTTP resources are located by
• HTTP client requests by establishing a __________ connection to a particular port on the server
• In HTTP pipelining
• FTP server listens for connection on port number
• In FTP, client contacts server using ____ as the transport protocol
• In which mode FTP, the client initiates both the control and data connections
• The file transfer protocol is built on
• In file transfer protocol, data transfer can be done in
• What is the port number for HTTP?
• The ______ method when used in the method field, leaves entity body empty
• Which of the following is not correct ?
• The conditional GET mechanism
• Which of the following is present in both an HTTP request line and a status line?
• Ping can
• Ping sweep is a part of
• ICMP is used in
• This allows to check if a domain is available for registration
• Expansion of FTP is
• FTP uses _____ parallel TCP connections to transfer a file
• Identify the incorrect statement
• If 5 files are transferred from server A to client B in the same session. The number of TCP connection between A and B is
• FTP server
• The commands, from client to server, and replies, from server to client, are sent across the control connection in ____ bit ASCII format
• Find the FTP reply whose message is wrongly matched
• Mode of data transfer in FTP, where all the is left to TCP
• In FTP, the password is sent to the server using _____ command
• Simple mail transfer protocol (SMTP) utilizes ____ as the transport layer protocol for electronic mail transfer
• SMTP connections secured by SSL are known as
• SMTP uses the TCP port
• Which one of the following protocol is used to receive mail messages?
• What is on-demand mail relay (ODMR)?
• An email client needs to know the ____ of its initial SMTP server
• A SMTP session may include
• SMTP (Simple mail transfer protocol) defines
• Which one of the following is an SMTP server configured in such a way that anyone on the internet can send e-mail through it?
• SMTP is used to deliver messages to
• When the mail server sends mail to other mail servers it becomes _____ ?
• If you have to send multimedia data over SMTP it has to be encoded into
• Expansion of SMTP is
• In SMTP, the command to write recievers mail adress is written with this command
• The underlying Transport layer protocol used by SMTP is
• Choose the statement which is incorrect incase of SMTP
• Internet mail places each object in
• Typically the TCP port used by SMTP is
• A session may include
• Example of user agents for e-mail
• When the sender and the receiver of an email are on different systems, we need only ______
• TELNET is an abbreviation for ____________
• TELNET is a ________ client-server application program
• When a user logs into a local time-sharing system, it is called ________ login
• When a user wants to access an application program or utility located on a remote machine, he or she performs ___________ login
• NVT uses two sets of characters, one for _____and one for __________
• For data, NVT uses US ASCII characters with the highest order bit set to ______
• For control, NVT uses US ASCII characters with the highest order bit set to ______
• TELNET uses only one TCP connection. The server uses ________ port and the client uses ________ port
• To distinguish data from control characters, each sequence of control characters is preceded by a special control character called ________
• In the _______ mode, the echoing is done by the client
• In the _______ mode, each character typed is sent by the client to the server
• In the ____ mode, line editing (echoing, character erasing, line erasing, and so on) is done by the client
• The _______ is software residing on the remote system that allows the remote system to receive characters from a TELNET server
• The _______ translates local characters into NVT form
• The _______ translates NVT characters into a form acceptable by the remote operating system
• If the sender wants to disable an option, it sends a _______ command
• If the sender wants to enable an option, it sends a _______ command
• If the sender wants an option disabled by the receiver, it sends a _______ command
• If the sender wants an option enabled by the receiver, it sends a _______ command
• SNMP defines the ___________________ to be sent from a manager to an agent and vice versa
• A manager is a host that runs the SNMP _______ process
• An agent is a host or computer that runs the SNMP _______ process
• SNMP uses two other protocols:________ and _________
• _______ defines the general rules for naming objects, defining object types, and showing how to encode objects and values
• We can compare the task of network management to the task of writing a program. Both tasks need rules. In network management this is handled by ___________
• We can compare the task of network management to the task of writing a program. Both tasks need variable declarations. In network management this is handled by _________
• We can compare the task of network management to the task of writing a program. Both tasks have actions performed by statements. In network management this is handled by _______
• SMI emphasizes three attributes to handle an object: _____, ________, and _________
• To name objects globally, SMI uses an object identifier, which is a hierarchical identifier based on a _______ structure
• All objects managed by SNMP are given an object identifier. The object identifier always starts with _______
• To define the data type, SMI uses fundamental _______ definitions and adds some new definitions
• SMI has two broad categories of data type: _______ and _______
• The _______ data types are atomic data types
• SMI defines two structured data types: ________ and _________
• SMI uses another standard, ___________, to encode data to be transmitted over the network
• The _________ ordering enables a manager to access a set of variables one after another by defining the first variable
• The GetRequest PDU is sent from the _______ to the __________ to retrieve the value of a variable or a set of variables
• The Response PDU is sent from the ______ to the ______ in response to GetRequest or GetNextRequest
• The Trap PDU is sent from the ______ to the _______ to report an event
• SNMP uses the services of UDP on two well-known ports, _______ and _______
• _______ runs the SNMP client program _______ runs the SNMP server program
• INTEGER, OCTET STRING, and ObjectIdentifier are _______ definitions used by SMI
• Which of the following could be a legitimate MIB object identifier?
• For a 1-byte length field, what is the maximum value for the data length?
• An object id defines a _______. Add a zero suffix to define the _______
• An SNMP agent can send _______ messages
• The _______ field in the SNMP PDU is an offset that points to the variable in error
• The _______ field in the SNMP PDU reports an error in a response message
• The _______ field in the SNMP PDU consists of a sequence of variables and their corresponding values
• We can divide audio and video services into _______ broad categories
• _______ audio/video refers to on-demand requests for compressed audio/video files
• __________ audio/video refers to the broadcasting of radio and TV programs through the Internet
• ________ audio/video refers to the use of the Internet for interactive audio/video applications
• According to the Nyquist theorem, we need to sample an analog signal ________times the highest frequency
• In ________ encoding, the differences between the samples are encoded instead of encoding all the sampled values
• _________ encoding is based on the science of psychoacoustics, which is the study of how people perceive sound
• ___________ is used to compress images
• ___________ is used to compress video
• The first phase of JPEG is ___________
• The second phase of JPEG is ___________
• The third phase of JPEG is ___________
• Jitter is introduced in real-time data by the _______________
• To prevent _________, we can timestamp the packets and separate the arrival time from the playback time
• A ________buffer is required for real-time traffic
• A __________on each packet is required for real-time traffic
• Real-time traffic needs the support of ____________
• _________ means changing the encoding of a payload to a lower quality to match the bandwidth of the receiving network
• _________ means combining several streams of traffic into one stream
• ________ is not suitable for interactive multimedia traffic because it retransmits packets in case of errors
• ________ is the protocol designed to handle real-time traffic on the Internet
• RTP uses a temporary even-numbered _______ port
• ___________ is a protocol for controlling the flow and quality of data
• RTCP uses an odd-numbered _______ port number that follows the port number selected for RTP
• __________ is an application protocol that establishes, manages, and terminates a multimedia session
• ______ is a standard to allow telephones on the public telephone network to talk to computers connected to the Internet
• A real-time video performance lasts 10 min. If there is jitter in the system, the viewer spends _______ minutes watching the performance
• A _______ shows the time a packet was produced relative to the first or previous packet
• ______ are used to number the packets of a real-time transmission
• In a real-time video conference, data from the server is _______ to the client sites
• A _______ adds signals from different sources to create a single signal
• A _______ changes the format of a high-bandwidth video signal to a lower quality narrow-bandwidth signal
• An RTP packet is encapsulated in _______
• When there is more than one source, the _______ identifier defines the mixer
• What is the port number of the HTTP ?
• What is the port number of the SMTP ?
• Using POP3, the e-mails are stored at
• To access e-mails from any machine and anywhere, we use
• SMTP is used to transfer
• Using IMAP, the e-mails are stored at
• What is the port number for (Post Office Protocol) POP3?
• Port number for ECHO?
• What is the port number for SSH Remote login service?
• PPP provides a protocol for bringing lines up, testing them, negotiating options, and bringing them down again gracefully when they are no longer needed. This protocol is known as:
• PPP handles
• What is the port number for (File Transfer Protocol - Control) FTP?
• Port number for (Secure Shell) SSH?
• The program that accepts the commands for composing, receiving and replying to messages, as well as for manipulating mail boxes is
• A file is being transferred. The time required actually is 6- hours. The mean time between crashes is 2-hours. The time required for the transfer is hours if synchronization is not provided
• What is the port number for (Trivial File Transfer Protocol) TFTP?
• What is the port number for Gopher services?
• To translate the message semantics from one format to other, ............... is used
• A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as
• What is the name of the software package that allows people to send electronic mail along a network of computers and workstations?
• What protocol is used between E-Mail servers?
• Which of the following provides a storage mechanism for incoming mail but does not allow a user to download messages selectively?
• What is the port number for POP3?
• Which of the following file retrieval methods use hypermedia?
• What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?
• Bulletin board system
• Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?
• To set up a bulletin board system you need
• The application layer of a network
• In Remote Logging, a user logs into a local timesharing system, it is called
• In File Transfer Protocol (FTP), while the control connection is open, the data connection can be opened and closed
• File Transfer Protocol (FTP), uses the same operation used by
• File Transfer Protocol (FTP), uses the well-known port 21 is used for the control connection and port 20 for the
• In the architecture of e-mail, we can have
• In File Transfer Protocol (FTP), a user needs an account (user name) and a password on the
• In EMAIL, We need two VAs and two pairs of MTAs, When the sender is connected to the mail server via
• Mail access starts with the client when the user needs to download e-mail from the
• TELNET is a general-purpose
• Example of command-driven user agents are
• When the sender and the receiver of an e-mail are on the same system, we need only two
• The command of End-of-File in the UNIX operating system is
• Most TELNET implementations operate in one of the modes
• An Email can have fields like, a number, a sender, size of the message and
• Examples of GUI based user agents are Eudora, netscape and
• In electronic mail, the MTA transfers the mail across the Internet via
• The well-known port used for FTP\'s control connection is
• MTA stands for
• FTP copies a file from
• The three modes of TELNET implementations are default mode, character mode and
• When the sender and the receiver of an e-mail are on different systems, we need two VAs and a pair of
• When the sender and the receiver of an e-mail are on the same system, we need only
• In File Transfer Protocol (FTP), the data connection is opened and then closed for each
• Post Office Protocol, version 3 (POP3), has two modes, Delete Mode and
• The FTP uses the services of
• NVT Stands for
• Post Office Protocol, version 3 (POP3) is simple and limited in
• At the beginning of the Internet era, the messages sent by electronic mail were short and consisted of

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