RRB JE (IT) : Data and Network Communication Quiz 5

Radio Frequency (RF) propagation microwave transmission, satellite transmission, infrared wave transmission, Bluetooth and Wi-Fi are the examples of____.

It is a self-replication program that infects computer and spreads by inserting copies of itself into other executable code or document.

With and IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?

TCP/IP header Sequence number field ___ bits and Checksum is ___ bits.

In Ethernet network device transmit data at rate 100 Mbps over 2 km cable. If the speed of signal is 30000 km/sec. What is the least frame size required?

What is the name gives to an interactive business providing a centralized market where many buyers and suppliers can come together for e-commerce or commerce related activities?

Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LAN’s what type of device(s) are needed to connect them? Choose the most correct answer.

In Ethernet Frame size, What is the minimum number of padding bits bytes required if data size is 40 bytes?

Header length in TCP header format scaling factor of ___ is used

Which of the following device are passive device (does not have lookup table) ?

i) Router ii) Hub iii) Gateway iv) Repeater