NIMCET Computer Previous Year Questions (PYQs) – Page 22 of 23

Using a dynamically linked library usually reduces executable file size because the library code is not fully copied into the executable.

Also, RAM usage can be reduced because the same library code may be shared by multiple programs.

A program can also take advantage of updates or bug fixes in the $DLL$ without recompiling the whole program.

So, the first three options are not valid disadvantages.

IMAP stands for Internet Message Access Protocol.

It is used by an email client to read and manage emails stored on an email server.

SMTP is mainly used for sending emails.

DNS resolves domain names into IP addresses.

ICMP is used for network control and error messages.

Access speed increases as we move closer to the CPU.

Hard Drive is the slowest among the given options.

RAM is faster than Hard Drive.

Cache memory is faster than RAM.

CPU Registers are the fastest because they are inside the CPU.

So, the correct order from slowest to fastest is:

Hard Drive $\to$ RAM $\to$ Cache $\to$ CPU Registers

DNS stands for Domain Name System.

It converts a human-readable domain name like www.google.com into its corresponding IP address.

SMTP is used for sending emails.

HTTP is used for communication between web browser and web server.

SSD is a storage device.

POP3 stands for Post Office Protocol version $3$.

It is generally used to download emails from the server to a local device. In many cases, emails may be deleted from the server after downloading.

IMAP stands for Internet Message Access Protocol.

It keeps emails on the server and synchronizes them across multiple devices.

So, POP3 is mainly download-based, while IMAP is synchronization-based.