Description : While initiating SSL session, the client code recognizes the SSL request and establishes a connection through TCP Part.................to the SSL code on the server. A) 420 B) 1032 C) 443 D) 322
Last Answer : C) 443
Description : While initiating SSL session, the client code recognizes the SSL request and establishes a connection through TCP Part …………….. to the SSL code on the server. A) 420 B) 1032 C) 443 D) 322
Description : The sender SMTP establishes a TCP connection with the destination SMTP and then waits for the server to send a ____ Service ready message.. A. 420 B. 320 C. 220 D. 120
Last Answer : C. 220
Description : Identify the correct order in which the following actions take place in an interaction between a web browser and a web server. 1. The web browser requests a webpage using HTTP. 2. The web browser establishes a TCP connection with the web ... DNS. a. 4,2,1,3 b. 1,2,3,4 c. 4,1,2,3 d. 2,4,1,3
Last Answer : a. 4,2,1,3
Description : In SMTP mail transaction flow, the sender SMTP establishes a TCP connection with the destination SMTP and then waits for the server to send a ………. a. 220 service ready message b. 421 service not available message c. Both of the above d. None of the above
Last Answer : c. Both of the above
Description : SSL is not responsible for a. Mutual authentication of client & server b. Secret communication c. Data Integrity protection d. Error detection and correction
Last Answer : d. Error detection and correction
Description : What is used to see if a client is still connected to a NetWare server? A. Spoofing TCP/SAP B. Watchdog packet C. GNS Round Robin D. DNS Round Robin
Last Answer : Watchdog packet
Description : 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? a. HTTP, FTP b. HTTP, TELNET c. FTP, SMTP d. HTTP, SMTP
Last Answer : a. HTTP, FTP
Description : The Post Office Protocol is an ………... protocol with both client (sender/receiver) and …………...functions A. electronic mail, server (storage) B. three layer , server C. UDP, transfer D. TCP, server
Last Answer : A. electronic mail, server (storage)
Description : A ________ is a 16-bit number used by the host-to-host protocol to identify to which higher- level protocol or application program (process) it must deliver incoming messages A. connection B. UDP C. port D. TCP
Last Answer : C. port
Description : In which layer of OSI client send request to the server? a. Application layer b. Presentation layer c. Session layer d. Transport layer
Last Answer : c. Session layer
Description : _____ is a bi-directional, fully duplex communication model that uses a persistent connection between client and server. A. Request-Response B. Publish-Subscriber C. Push-Pull D. Exclusive Pair
Last Answer : D. Exclusive Pair
Description : FTP server listens for connection on port number A. 20 B. 21 C. 22 D. 23
Last Answer : B. 21
Description : FTP server listens for connection on which port number? a) 18 b) 21 c) 22 d) 26
Last Answer : b) 21
Description : What is the main function of Session layer in OSI model? a. Defines how data is formatted between the devices b. Made physical connection between server and client c. Both a and b d. None of the above
Last Answer : a. Defines how data is formatted between the devices
Description : In FTP, the well-known port ____ is used for the control connection and the well-known port ________ for the data connection A. 21; 22 B. 21; 20 C. 20; 21 D. none of the above
Last Answer : B. 21; 20
Description : The ____ layer establishes, maintains, and synchronizes the interaction between communicating systems. a. network b. transport c. session d. presentation
Last Answer : c. session
Description : Suppose you are browsing the world wide web using a web browser and trying to access the web servers. What is the underlying protocol and port number that are being used? a. UDP, 80 b. TCP, 80 c. TCP, 25 d. UDP, 25
Last Answer : b. TCP, 80
Description : A _____ is a TCP name for a transport service access point. a. port b. pipe c. node d. protocol
Last Answer : a. port
Description : In the TCP/IP protocol suite, which one of the following is NOT part of the IP header? a. Fragment Offset b. Source IP address c. Destination IP address d. Destination port number
Last Answer : d. Destination port number
Description : Which processes does TCP, but not UDP, use? a. Windowing b. Acknowledgements c. Both a and b d. Destination Port
Last Answer : c. Both a and b
Description : Typically the TCP port used by SMTP is A. 25 B. 35 C. 50 D. 15
Last Answer : A. 25
Description : Length of Port address in TCP/IP is A. 8 bit long B. 4 bit long C. 32 bit long D. 16 bit long
Last Answer : D. 16 bit long
Description : Length of Port address in TCP/IP is a. 8 bit long b. 4 bit long c. 32 bit long d. 16 bit long
Last Answer : d. 16 bit long
Description : What cangreatly reduce TCP/IP configuration problems? A. WINS Server B. WINS Proxy C. DHCP Server D. PDC E. None of the above
Last Answer : DHCP Server
Description : 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? a.HTTP b.FTP c.Telnet d.TCP
Last Answer : c.Telnet
Description : Consider the assertions given below. Which among them prove to be beneficial for Persistent HTTP connections? A. Reduction in latency over the sub- sequent requests B. Pipeline-oriented connection over the requests and responses C. Increase ... TCP connections a. A & B b. C & D c. A & C d. B & B
Last Answer : a. A & B
Description : Match the following Layers and Protocols for a user browsing with SSL: a. Application of layer i. TCP b. Transport layer ii. IP c. Network layer iii. PPP d. Datalink layer iv. HTTP
Last Answer : Answer: 1
Description : When a client computer sends a request to a Domain Name System (DNS) server, what type of packet is sent?
Last Answer : DNS primarily uses the User Datagram Protocol (UDP) on port number 53 to serve requests. DNS queries consist of a single UDP request from the client followed by a single UDP reply from the server. ... the answer exceeds 512 bytes and both client and server support EDNS, larger UDP packets are used.
Description : State whether true or false. i) Multithreading is useful for application that perform a number of essentially independent tasks that do not be serialized. ii) An example of multithreading is a database server that listens for ... B) i-True, ii-True C) i-False, ii-True D) i-False, ii-False
Last Answer : B) i-True, ii-True
Description : A client-server system uses a satellite network, with the satellite at a height of 40,000 kms. What is the best-case delay in response to a request? (Note that the speed of light in air is 3,00,000 km/second). (A) 133.33 m sec (B) 266.67 m sec (C) 400.00 m sec (D) 533.33 m sec
Last Answer : (D) 533.33 m sec Explanation: The request has to go up and down, and the response has to go up and down. The total path length traversed is thus 160.000 km. The speed of light in air and vacuum is 300,000 km/sec, so the propagation delay alone is 160,000/300,000 sec or about 533 msec.
Description : The well-known port of the SMTP server is ……. a. 110 b. 25 c. 50 d. 20
Last Answer : b. 25
Description : . A _____ DBMS distributesdata processing tasks between the workstation anda network server. A. Network B. Relational C. Client Server D. Hierarchical E. None of the above
Last Answer : Client Server
Description : Consider different activities related to email: m1: Send an email from a mail client to a mail server m2: Download an email from mailbox server to a mail client m3: Checking email in a web browser Which is the application ... FTP m3: HTTP c. m1: SMTP m2: POP m3: HTTP d. m1: POP m2: SMTP m3: IMAP
Last Answer : c. m1: SMTP m2: POP m3: HTTP
Description : Which DNS client maps an address to a name or a name to an address especially when required by a host? a. Resolver b. Mapper c. Primary Server d. Secondary Server
Last Answer : a. Resolver
Description : While transferring files between server and client, if the transmission rates along the path is 10Mbps, 20Mbps, 30Mbps, 40Mbps. The throughput is usually a. 20Mbps b. 10Mbps c. 40Mbps d. 50Mbps
Last Answer : b. 10Mbps
Description : Find out the components of DHCP: 1) A protocol that delivers host-specific configuration parameters from a server to a host. 2) The client determines its own hardware address; this is normally in a ROM on the hardware. 3) ... or permanent network addresses to hosts. A. 1,2 B. 1,3 C. 2,3 D. 1,2,3
Last Answer : B. 1,3
Description : State weather the following statement is true or false for Sendmail. 1).Sendmail is a command-line tool designed for most UNIX-like operating systems. 2).It define a method of transferring mail, and acts as a client/server ... . false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false
Last Answer : A. 1. True, 2. False, 3. true
Description : Which DNS client maps an address to a name or a name to an address especially when required by a host? A. Resolver B. Mapper C. Primary Server D. Secondary Server
Last Answer : A. Resolver
Description : _______ is a form of denial of service attack in which a hostile client repeatedly sends SYN packets to every port on the server using fake IP addresses. a) Cybergaming crime b) Memory shaving c) Syn flooding d) Software piracy e) None of these
Last Answer : a) Cybergaming crime
Description : ___ is a stateful communication model and server is aware of all open connection. A. Request-Response B. Publish-Subscriber C. Push-Pull D. Exclusive Pair
Description : What does SSL stands for ? System socket layer Secure system login Secure socket layer Secure system login
Last Answer : Secure socket layer
Description : The _______ is used to provide integrity check, authentication, and encryption to IP datagram’s. A. UDP B. Transport layer C. ESP D. SSL
Last Answer : C. ESP
Description : A _____ should be considered as a means to divide the world into two or more networks: one or more secure networks and one or more non-secure networks. A. firewall B. ESP C. SSL D. both a and b
Last Answer : A. firewall
Description : State whether the following statement are true. i) An application-level gateway is often referred to as a proxy. ii) In proxy, a direct connection is established between the client and destination server. A) True, False B) False, True C) True, True D) False, False
Last Answer : A) True, False
Description : Which of the following protocols is an application layer protocol that establishes, manages and terminates multimedia sessions ? a. Session Maintenance Protocol b. Real - time Streaming Protocol c. Real - time Transport Control Protocol d. Session Initiation Protocol
Last Answer : d. Session Initiation Protocol
Description : A CPA establishes quality control policies and procedures for deciding whether to accept a new client or continue to perform services for a current client. The primary purpose ... resulting from failure to detect irregularities in client financial statements association with clients whose
Last Answer : To minimize the likelihood of association with clients whose management lacks integrity
Description : ………. security technology establishes an encrypted link between a Web server and browser. -Technology
Last Answer : SSL security technology establishes an encrypted link between a Web server and browser.