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Which is the correct syntax for sed on command line? ‘’ . b) sed ‘’ . c) sed ‘’ d) sed ‘’ .
Which one of the following is the correct syntax for performing substitution using sed? s /expr1/ expr2 b) sed s /expr1 expr2 c) sed s /expr1/ expr2/ flags d) sed s
For the given syntax of sed, which among the following is not a correct option? General syntax of sed: /pattern/action
Which of the following statements is/are correct? 1. An address generated by the CPU is commonly referred to as a physical address. 2. An address seen by the memory unit is commonly referred to as a logical address. 3. The run-time mapping from virtual to physical address is done by the memory management unit (MMU). Select the correct answer using the code given below.
Which two statements describe the IP address 10.16.3.65/23?
1. The subnet address is 10.16.3.0 255.255.254.0.
2. The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
3. The last valid host address in the subnet is 10.16.2.254 255.255.254.0.
4. The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify?
Which sed command deletes the specified address range /s b) /p c) /d d) /y
On a non-pipelined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory.     Initialize the address register     Initialize the count to 500 LOOP: Load a byte from device     Store in memory at address given by address register     Increment the address register     Decrement the count     If count! = 0 go to LOOP Assume that each statement in this program is equivalent to a machine instruction which takes one clock cycle to execute if it is a non-load/store instruction. The load-store instructions take two clock cycles to execute. The designer of the system also has an alternate approach of using the DMA controller to implement the same transfer. The DMA controller requires 20 clock cycles for initialization and other overheads. Each DMA transfer cycle takes two clock cycles to transfer one byte of data from the device to the memory. What is the approximate speedup when the DMA controller based design is used in place of the interrupt driven program based input-output?
In a class B subnet, we know the IP address of one host and the mask as given below: IP address = 125.134.112.66 Mask = 255.255.224.0 What is the first address (Network address)?
Consider the following two statements. S1 : Destination MAC address of an ARP reply is a broadcast address. S2 : Destination MAC address of an ARP request is a broadcast address. Which one of the following choices is correct?