MCQ Bank
iret returns on the basis of __________ and __________.
- A) CS, IP
- B) DS, IP
- C) CS, SS
- D) IP, SP
Which of the following services of INT 10 is used to get the video font information?
- A) 1128h
- B) 1129h
- C) 1130h
- D) 1127h
A FAT32 file system directory entry in DOS consist of how many bytes ?
- A) 16
- B) 24
- C) 64
- D) 32
The 'program segment prefix' for com files is of _____ size.
- A) 64 bytes
- B) 512 bytes
- C) 256 bytes
- D) 128 bytes
In the context of video services, if we want to write string then which of the value will be placed in AH?
- A) 10h
- B) 12h
- C) 13h
- D) 11h
We can set the current file position in DOS using service number ____
- A) 0x40
- B) 0x42
- C) 0x38
- D) 0x43
The root directory of floppy contains _____ fixed entries.
- A) 64
- B) 512
- C) 128
- D) 256
"INT13 --BIOS disk services" generally uses which register to return the 'error code' ?
- A) CF
- B) AL
- C) AH
- D) DL
In the context of video services, if we want to set cursor position which of the following will be the value of AH?
- A) AH = 02h
- B) AH = 03h
- C) AH = 04h
- D) AH = 01h
The INT 0x13 service 0x08 is use to
- A) Get drive parameter
- B) Reset disk sector
- C) Read disk sector
- D) Write disk sector
PCB stands for ___________________________.
- A) Process Caching Block
- B) Program Control Block
- C) Process Control Block
- D) Programmable Counter Block
1’s complement for 01101 will be:
- A) 00000
- B) 00100
- C) 10010
- D) 10111
If Σ = {aa bb} then Σ* will not contain ___.
- A) aaabbb
- B) aabbbb
- C) aabbaa
- D) bbaabbbb
Closure of an FA is the same as ___________ of an FA with itself except that the initial state of the required FA is a final state as well.
- A) Concatenation
- B) Union
- C) Intersection
- D) Sum
One language can have ___ TG's.
- A) Only one
- B) Only two
- C) More than one
- D) Only three
In Moore machine the output depends on
- A) Nothing
- B) Present state and present input
- C) Only present state
- D) Type of input
According to 1st part of the Kleene's theorem if a language can be accepted by an FA then it can be accepted by a ___ as well.
- A) FA
- B) CFG
- C) GTG
- D) TG
Subtraction of binary numbers is possible through:
- A) Incrementing machine
- B) Both complementing and incrementing machine
- C) Complementing machine
- D) Converting machine
Even-palindrome is a ___ language.
- A) Non-regular
- B) Regular
- C) Regular but infinite
- D) Regular but finite
In Mealy machine the output depends on __________________
- A) Only present state
- B) Present state and Present input
- C) Type of input
- D) Nothing