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Post office protocol (POP) is a message access protocol which is used to extract message for client. In this regard, which of the following are true ? (A) POP has two modes, Delete mode and keep (B) In Delete mode, mail is deleted from mail box after each retrival (C) In Delete mode, mail is deleted from mail box before each retrieval (D) In keep mode, mail is deleted before retrival (E) In keep mode, mail remains in mail box after retrival Choose the correct answer from the options given below:
A stack is implemented with an array of ‘A [0..N – 1]’ and a variable ‘pos’. The push and pop operations are defined by the following code. push(x)                 A[pos] ← x                 pos ← pos – 1 end push pop( )                 pos ← pos + 1                 return A[pos] end pop Which of the following will initialize an empty stack with capacity N for the above implementation?
Consider the following three statements about link state and distance vector routing protocols, for a large network with 500 network nodes and 4000 links. [S1] The computational overhead in link state protocols is higher than in distance vector protocols. [S2] A distance vector protocol (with split horizon) avoids persistent routing loops, but not a link state protocol. [S3] After a topology change, a link state protocol will converge faster than a distance vector protocol. Which one of the following is correct about S1, S2, and S3?
Which three statements are true about the operation of a full-duplex Ethernet network?
1. There are no collisions in full-duplex mode.
2. A dedicated switch port is required for each full-duplex node.
3. Ethernet hub ports are preconfigured for full-duplex mode.
4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
5. The host network card and the switch port must be capable of operating in full-duplex mode.
What standard, protocol or language was generalized to become a standard protocol for sending messages of any type, using any protocol?
Consider the following statements regarding the TCP/IP protocol: 1. TELNET is an application of TCP protocol. 2. SMTP provides a basic electronic mail facility and makes use of TCP to send message to an SMTP module on another host. 3. The Internet Protocol is used at internet layer to provide the routing function across multiple network. Which of the above statements are correct ?
Consider the following pairs: Terms have sometimes seen in the news Their origin 1. Annex-I Countries Cartagena Protocol 2. Certified Emissions Reductions Nagoya Protocol 3. Clean Development Mechanism Kyoto Protocol Which of the pairs given above is/are correctly matched?
The Skype protocol is a proprietary (closed-source) protocol, parts of which use the Global Index ______ protocol.
The charges for a five-day trip by a tourist bus for one full ticket and a half-ticket are Rs. 1440 inclusive of boarding charges which are same for a full ticket and a half-ticket. The charges for the same trip for 2 full tickets and one half-ticket inclusive of boarding charges are Rs. 2220. The fare for a half-ticket is 75% of the full ticket. Find the fare and the boarding charges separately for one full ticket.
A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. This POP -