Consider the following steps:

$1$. RAM is a temporary and volatile memory.

$2$. Static RAM stores a bit of data using transistor and capacitor pair, which comprise a memory cell.

$3$. Dynamic RAM (DRAM) stores a bit of data using a flip-flop's stats.

$4$. The speed of cache memory is plodding compared to the access time of the main memory.

Which of the following statement/s is/are correct?

Which of the following is not correct for Read-Only Memory (ROM)?
1. It is a non-volatile and resident memory of the computer.
2. It is pre-loaded with data and software that never changes.
3. Programmable ROM (PROM) is a form of digital memory, where the setting of each bit is locked by a fuse or anti-fuse.
4. PROM is alterable in nature.
Select the correct answer using the codes given below:

Which of the following is not a secondary memory of the computer?

1. Hard Disk Drive (HDD)
2. Floppy Disk (FD)
3. Cache Memory
4. Compact Dick (CD)
Select the correct answer using the codes given below:

Which of the following is not an internet protocol?

1. TCP/IP 
2. HTTP
3. Gopher
4. STPI
Select the correct answer using the codes given below:

Consider the following statements about WI max:

$1$. It stands for World Wide Interoperability for Microwave Access.
$2$. Wi max surpasses the $30$ m wireless range of a conventional Wi-Fi Local Area Network(LAN), offering a metropolitan area network with a maximum signal radius of $5$ km.
$3$. It has been designed to provide $30$ to $40$ MBPS data rates up to $1$ GBPS for fixed stations.
Which of the statements given above are correct?

Consider the following statements:

$1$. The narrowband ISDN is based on a $64$ KBPS channel as the basic switching unit, while broadband ISDN supports very high data rates ($100$s of Mbps).

$2$. Narrowband ISDN has a circuit switching orientation, and broadband ISDN has a packet switching orientation.

$3$. Broadband refers to telecommunication in which broadband frequencies are available; information can be multiplexed and sent concurrently on many bands' frequencies or channels.

Which of the statement(s) given above is/are correct?