Which of the following statements is not true? You may select more than one. Man

Question

Which of the following statements is not true? You may select more than one.

Many Unix applications are built from source code using the following commands:

./configure
make
sudo make install

CMake is a program used to generate makefiles.

The bash shell and the Bourne shell, sh, interpret the same programming language.

The bash shell reads ~/.profile followed by /etc/profile (if it exists).

Which of the following strings will be matched by the regular expression, [a-zA-Z]*[0-9]. ? You may select more than one.

a9

09

9

ABCDEFGZ0009

Which of the following regular expressions only matches variable names with all of the following rules?

1) Variable names must start with an alphabetic character or an underscore.

2) If a variable name starts with an underscore, the variable name must include at least one alphabetic character.

3) Variable names my include numbers at any position after the start.

(^[a-zA-Z][a-zA-Z0-9_]*)|(^[_]+[0-9]*[a-zA-Z]+[a-zA-Z0-9_]*)

(.[a-zA-Z][a-zA-Z0-9_]*)|(^[_]*[a-zA-Z0-9_]$)

(.[a-zA-Z][a-zA-Z0-9_]*)|(^[_]+[a-zA-Z0-9_]*)

(^[a-zA-Z][a-zA-Z0-9_]*)|(^[_]+[a-zA-Z0-9_]*)

Which of the following statements is true?

All multitasking operating systems are multi-user operating systems.

A multitasking time sharing operating system contains a component called a scheduler which determines which of the processes or threads that are ready to run will actually run.

All multitasking operating systems implement virtual memory.

Multitasking time sharing operating systems can not perform batch processing.

Which of the following statements is true?

IPv4 uses 32 bits for each address, and IPv6 uses 128 bits for each address.

IPv4 defines more than 4 billion internet routable addresses.

All internet routers support both IPv4 and IPv6.

Each IPv4 address identifies exactly one computer.

Many Unix applications are built from source code using the following commands:

./configure
make
sudo make install

CMake is a program used to generate makefiles.

The bash shell and the Bourne shell, sh, interpret the same programming language.

The bash shell reads ~/.profile followed by /etc/profile (if it exists).

Explanation / Answer

Q30. D

Q31. A,C

Q32. C

Q33. B

Q34. A, B

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