Which of the following is true? a. Fields are composed of bytes b. Records are composed of fields c. Fields are composed of characters d. All of above

Which of the following is true?
a. Fields are composed of bytes
b. Records are composed of fields
c. Fields are composed of characters
d. All of above
by

1 Answer

Answer :

All of above
by

Related questions

Which of the following is true? A) Fields are composed of bytes B) Records are composed of fields C) Fields are composed of characters D) All of above

Description : Which of the following is true? A) Fields are composed of bytes B) Records are composed of fields C) Fields are composed of characters D) All of above

Last Answer : Answer : D

Which of the following is true? a. Fields are composed of bytes b. Records are composed of fields c. Fields are composed of characters d. All of above

Description : Which of the following is true? a. Fields are composed of bytes b. Records are composed of fields c. Fields are composed of characters d. All of above

Last Answer : d. All of above

The ascending order or a data Hierarchy is a. bit - bytes - fields - record - file - database b. bit - bytes - record - field - file - database c. bytes - bit- field - record - file - database d. bytes -bit - record - field - file - database

Description : The ascending order or a data Hierarchy is a. bit - bytes - fields - record - file - database b. bit - bytes - record - field - file - database c. bytes - bit- field - record - file - database d. bytes -bit - record - field - file - database

Last Answer : a. bit - bytes - fields - record - file - database

Which of the following statements is TRUE? a. Both Ethernet frame and IP packet include checksum fields b. Ethernet frame includes a checksum field and IP packet includes a CRC field c. Ethernet frame includes a CRC field and IP packet includes a checksum field d. Both Ethernet frame and IP packet include CRC fields

Description : Which of the following statements is TRUE? a. Both Ethernet frame and IP packet include checksum fields b. Ethernet frame includes a checksum field and IP packet includes a CRC field c. Ethernet ... and IP packet includes a checksum field d. Both Ethernet frame and IP packet include CRC fields

Last Answer : Ethernet frame includes a CRC field and IP packet includes a checksum field

State weather the following statement is true or false for Multipurpose Internet Mail Extensions 1).The general syntax for MIME header fields is not the same as that for RFC 2822. 2).MIME header field names are never significant, but the cases of field values can b. 3). A MIME-compliant message must contain a header field with the following verbatim text: MIME-Version: 1.0 A. 1. True, 2. true, 3. true B. 1. true, 2. false, 3. false C. 1. false, 2. false, 3. false D. 1.false, 2. true, 3. true

Description : State weather the following statement is true or false for Multipurpose Internet Mail Extensions 1).The general syntax for MIME header fields is not the same as that for RFC 2822. 2).MIME header field names are never ... false C. 1. false, 2. false, 3. false D. 1.false, 2. true, 3. true

Last Answer : A. 1. True, 2. true, 3. true

The term gigabyte refers to a. 1024 bytes b. 1024 kilobytes c. 1024 megabytes d. 1024 gigabyte

Description : The term gigabyte refers to a. 1024 bytes b. 1024 kilobytes c. 1024 megabytes d. 1024 gigabyte

Last Answer : 1024 megabytes

The term gigabyte refers to a. 1024 bytes b. 1024 kilobytes c. 1024 megabytes d. 1024 gigabyte

Description : The term gigabyte refers to a. 1024 bytes b. 1024 kilobytes c. 1024 megabytes d. 1024 gigabyte

Last Answer : 1024 megabytes

Which statement is valid? a. 1KB = 1024 bytes b. 1 MB=2048 bytes c. 1 MB = 1000 kilobytes d. 1 KB = 1000 bytes

Description : Which statement is valid? a. 1KB = 1024 bytes b. 1 MB=2048 bytes c. 1 MB = 1000 kilobytes d. 1 KB = 1000 bytes

Last Answer : 1KB = 1024 bytes

The maximum frame length for 10-Mbps Ethernet is ________ bytes. A) 1518 B) 1500 C) 1200 D) none of the abov

Description : The maximum frame length for 10-Mbps Ethernet is ________ bytes. A) 1518 B) 1500 C) 1200 D) none of the abov

Last Answer : 1518

Inasynchronous transmission, the gap time between bytes is _______. A) fixed B) variable C) afunctionof the data rate D) zero

Description : Inasynchronous transmission, the gap time between bytes is _______. A) fixed B) variable C) afunctionof the data rate D) zero

Last Answer : variable

In SONET, for each frame, the bytes are transmitted __________. A) from left to the right, top to bottom B) from right to theleft, bottom to top C) from left to the right, bottom to top D) from right to the left, top to bottom

Description : In SONET, for each frame, the bytes are transmitted __________. A) from left to the right, top to bottom B) from right to theleft, bottom to top C) from left to the right, bottom to top D) from right to the left, top to bottom

Last Answer : from left to the right, bottom to top

In Frame Relay, the EA field defines thenumber of bytes; it is _____ in the last byte of the address. A) 0 B) 1 C) 2 D) 3

Description : In Frame Relay, the EA field defines thenumber of bytes; it is _____ in the last byte of the address. A) 0 B) 1 C) 2 D) 3

Last Answer : 1

In Frame Relay, an address can be________ bytes. A) only 2 B) 2 to 3 C) 2 to 4 D) none of the above

Description : In Frame Relay, an address can be________ bytes. A) only 2 B) 2 to 3 C) 2 to 4 D) none of the above

Last Answer : 2 to 4

The IPv4header size _______. A) is 20 to 60 bytes long B) is 20 bytes long C) is 60 bytes long D) noneof the above

Description : The IPv4header size _______. A) is 20 to 60 bytes long B) is 20 bytes long C) is 60 bytes long D) noneof the above

Last Answer : is 20 to 60 bytes long

The IPv4header size _______. A) is 20 to 60 bytes long B) is always 20bytes long C) is always 60bytes long D) depends on the MTU

Description : The IPv4header size _______. A) is 20 to 60 bytes long B) is always 20bytes long C) is always 60bytes long D) depends on the MTU

Last Answer : is 20 to 60 bytes long

In IPv4, if the fragment offset hasa value of 100, it means that _______. A) thedatagram has notbeen fragmented B) thedatagram is 100 bytes in size C) thefirst byte of the datagram is byte100 D) the first byteof the datagram is byte800

Description : In IPv4, if the fragment offset hasa value of 100, it means that _______. A) thedatagram has notbeen fragmented B) thedatagram is 100 bytes in size C) thefirst byte of the datagram is byte100 D) the first byteof the datagram is byte800

Last Answer : the first byteof the datagram is byte800

In IPv4, what is the value of the total length field in bytes if the header is 28 bytes and the data field is 400bytes? A) 428 B) 407 C) 107 D) 427

Description : In IPv4, what is the value of the total length field in bytes if the header is 28 bytes and the data field is 400bytes? A) 428 B) 407 C) 107 D) 427

Last Answer : 428

In IPv4 header, an HLEN value of decimal 10 means_______. A) there are 10bytes ofoptions B) there are 40bytes ofoptions C) there are 10bytes inthe header D) thereare 40 bytes in the header

Description : In IPv4 header, an HLEN value of decimal 10 means_______. A) there are 10bytes ofoptions B) there are 40bytes ofoptions C) there are 10bytes inthe header D) thereare 40 bytes in the header

Last Answer : thereare 40 bytes in the header

What is the commonly used unit for measuring the speed of data transmission? A) Bytes per second B) Baud C) Bits per second D) Both B and C

Description : What is the commonly used unit for measuring the speed of data transmission? A) Bytes per second B) Baud C) Bits per second D) Both B and C

Last Answer : B) Baud

Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps

Description : Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps

Last Answer : d. 3200 bps

An ACK number of 1000 in TCP always means that a. 999 bytes have been successfully received b. 1000 bytes have been successfully received c. 1001 bytes have been successfully received d. None of the above

Description : An ACK number of 1000 in TCP always means that a. 999 bytes have been successfully received b. 1000 bytes have been successfully received c. 1001 bytes have been successfully received d. None of the above

Last Answer : d. None of the above

What is the maximum size of data that the application layer can pass on to the TCP layer below? a. Any size b. 216 bytes - size of TCP header c. 216 bytes d. 1500

Description : What is the maximum size of data that the application layer can pass on to the TCP layer below? a. Any size b. 216 bytes - size of TCP header c. 216 bytes d. 1500

Last Answer : a. Any size

In an IPv4 datagram, the M bit is 0, the value of HLEN is 10, the value of total length is 400 and the fragment offset value is 300. The position of the datagram, the sequence numbers of the first and the last bytes of the payload, respectively are a. Last fragment, 2400 and 2789 b. First fragment, 2400 and 2759 c. Last fragment, 2400 and 2759 d. Middle fragment, 300 and 689

Description : In an IPv4 datagram, the M bit is 0, the value of HLEN is 10, the value of total length is 400 and the fragment offset value is 300. The position of the datagram, the sequence numbers of the ... 2789 b. First fragment, 2400 and 2759 c. Last fragment, 2400 and 2759 d. Middle fragment, 300 and 689

Last Answer : c. Last fragment, 2400 and 2759

An IP datagram of size 1000 bytes arrives at a router. The router has to forward this packet on a link whose MTU (maximum transmission unit) is 100 bytes. Assume that the size of the IP header is 20 bytes. The number of fragments that the IP datagram will be divided into for transmission is : a. 10 b. 50 c. 12 d. 13

Description : An IP datagram of size 1000 bytes arrives at a router. The router has to forward this packet on a link whose MTU (maximum transmission unit) is 100 bytes. Assume that the size of the IP header is 20 bytes ... the IP datagram will be divided into for transmission is : a. 10 b. 50 c. 12 d. 13

Last Answer : d. 13

In an IPv4 datagram, the M bit is 0, the value of HLEN is 10, the value of total length is 400 and the fragment offset value is 300. The position of the datagram, the sequence numbers of the first and the last bytes of the payload, respectively are a. Last fragment, 2400 and 2789 b. First fragment, 2400 and 2759 c. Last fragment, 2400 and 2759 d. Middle fragment, 300 and 689

Description : In an IPv4 datagram, the M bit is 0, the value of HLEN is 10, the value of total length is 400 and the fragment offset value is 300. The position of the datagram, the sequence numbers of the ... 2789 b. First fragment, 2400 and 2759 c. Last fragment, 2400 and 2759 d. Middle fragment, 300 and 689

Last Answer : c. Last fragment, 2400 and 2759

The network layer is concerned with __________ of data. a. bits b. frames c. packets d. bytes

Description : The network layer is concerned with __________ of data. a. bits b. frames c. packets d. bytes

Last Answer : c. packets

The minimum frame size required for a CSMA/CD based computer network running at 1 Gbps on a 200m cable with a link speed of 2 × 108m/s is a. 125 bytes b. 250 bytes c. 500 bytes d. None of these

Description : The minimum frame size required for a CSMA/CD based computer network running at 1 Gbps on a 200m cable with a link speed of 2 × 108m/s is a. 125 bytes b. 250 bytes c. 500 bytes d. None of these

Last Answer : b. 250 bytes

How many bytes of data can be sent in 15 seconds over a serial link with baud rate of 9600 in asynchronous mode with odd parity and two stop bits in the frame? a. 10,000 bytes b. 12,000 bytes c. 15,000 bytes d. 27,000 bytes

Description : How many bytes of data can be sent in 15 seconds over a serial link with baud rate of 9600 in asynchronous mode with odd parity and two stop bits in the frame? a. 10,000 bytes b. 12,000 bytes c. 15,000 bytes d. 27,000 bytes

Last Answer : b. 12,000 bytes

A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of an acknowledgement is 100 bytes and the transmission rate at the receiver is 8 Kbps. The one-way propagation delay is 100 milliseconds. Assuming no frame is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500

Description : A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of ... is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500

Last Answer : a. 2500

Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000

Description : Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000

Last Answer : d. 20000

Header of a frame generally contains a. synchronization bytes b. addresses c. frame identifier d. all of the mentioned

Description : Header of a frame generally contains a. synchronization bytes b. addresses c. frame identifier d. all of the mentioned

Last Answer : d. all of the mentioned

A UDP datagram of _____ bytes is acceptable to all implementations A. 516 B. 1024 C. 256 D. 512

Description : A UDP datagram of _____ bytes is acceptable to all implementations A. 516 B. 1024 C. 256 D. 512

Last Answer : A. 516

The IPv4 header size _______ A. is 20 to 60 bytes long B. is always 20 bytes long C. is always 60 bytes long D. depends on the MTU

Description : The IPv4 header size _______ A. is 20 to 60 bytes long B. is always 20 bytes long C. is always 60 bytes long D. depends on the MTU

Last Answer : A. is 20 to 60 bytes long

In IPv4 header, an HLEN value of decimal 10 means _______ A. there are 10 bytes of options B. there are 40 bytes of optionsC. there are 10 bytes in the header D. there are 40 bytes in the header

Description : In IPv4 header, an HLEN value of decimal 10 means _______ A. there are 10 bytes of options B. there are 40 bytes of options C. there are 10 bytes in the header D. there are 40 bytes in the header

Last Answer : D. there are 40 bytes in the header

The network layer encapsulates the data into _______of data. A. bits B. frames C. packets D. bytes

Description : The network layer encapsulates the data into _______of data. A. bits B. frames C. packets D. bytes

Last Answer : C. packets

The maximum length (in bytes) of an IPv4 datagram is? A. 32 B. 1024 C. 65535 D. 512

Description : The maximum length (in bytes) of an IPv4 datagram is? A. 32 B. 1024 C. 65535 D. 512

Last Answer : C. 65535

Header of a Layer two frame usually contain ______________ A. synchronization bytes B. addresses C. frame identifier D. all of the mentioned

Description : Header of a Layer two frame usually contain ______________ A. synchronization bytes B. addresses C. frame identifier D. all of the mentioned

Last Answer : D. all of the mentioned

The network layer is concerned with __________ of data. a) bits b) frames c) packets d) bytes

Description : The network layer is concerned with __________ of data. a) bits b) frames c) packets d) bytes

Last Answer : c) packets

Which of the following is not true for a magnetic disk? a. It is expensive relative to magnetic tape b. It provides only sequential access to stored data c. Users can easily update records by writing over the old data d. All of above

Description : Which of the following is not true for a magnetic disk? a. It is expensive relative to magnetic tape b. It provides only sequential access to stored data c. Users can easily update records by writing over the old data d. All of above

Last Answer : It provides only sequential access to stored data

What composite field (composed of E and H fields) is propagated into free space?

Description : What composite field (composed of E and H fields) is propagated into free space?

Last Answer : Radiation field.

What composite field (composed of E and H fields) is found stored in the antenna?

Description : What composite field (composed of E and H fields) is found stored in the antenna?

Last Answer : Induction field.

Which two composite fields (composed of E and H fields) are associated with every antenna?

Description : Which two composite fields (composed of E and H fields) are associated with every antenna?

Last Answer : Induction field and radiation field.

The relational model is based on the concept that data is organized and stored in two-dimensional tables called ………………………A) Fields B) Records C) Relations D) Keys

Description : The relational model is based on the concept that data is organized and stored in two-dimensional tables called ………………………A) Fields B) Records C) Relations D) Keys

Last Answer : C) Relations

In IEEE 802.11, the MAC layer framehas ______ fields. A) four B) five C) six D) none of the above

Description : In IEEE 802.11, the MAC layer framehas ______ fields. A) four B) five C) six D) none of the above

Last Answer : four

A command that lets youchange one or more fields in a record is A. Insert B. Modify C. Look-up D. All of theabove E. None of the above

Description : A command that lets youchange one or more fields in a record is A. Insert B. Modify C. Look-up D. All of theabove E. None of the above

Last Answer : Modify

Subschema can be used to A. create very different, personalized views of the samedata B. present information in different formats C. hide sensitive informationby omitting fields from thesub¬schema's description D. All of theabove E. None of the above

Description : Subschema can be used to A. create very different, personalized views of the samedata B. present information in different formats C. hide sensitive informationby omitting fields from thesub¬schema's description D. All of theabove E. None of the above

Last Answer : All of theabove

Which one of the following fields of an IP header is NOT modified by a typical IP router? a. Checksum b. Source address c. Time to Live (TTL) d. Length

Description : Which one of the following fields of an IP header is NOT modified by a typical IP router? a. Checksum b. Source address c. Time to Live (TTL) d. Length

Last Answer : b. Source address

Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering? a. Source Route Failed b. Communication Administratively Prohibited c. Host Precedence Violation d. Precedence Cut-off in Effect

Description : Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering? a. Source Route Failed b. Communication Administratively Prohibited c. Host Precedence Violation d. Precedence Cut-off in Effect

Last Answer : b. Communication Administratively Prohibited

What is the difference between the Ethernet frame preamble field and the IEEE 802.3 preamble and start of frame Delimiter fields? a. 1 byte b. 1 bit c. 4 bit d. 16 bit

Description : What is the difference between the Ethernet frame preamble field and the IEEE 802.3 preamble and start of frame Delimiter fields? a. 1 byte b. 1 bit c. 4 bit d. 16 bit

Last Answer : a. 1 byte

What are the different fields in pseudo header?

Description : What are the different fields in pseudo header?

Last Answer : ∙ Protocol number ∙ Source IP address ∙ Destination IP addresses.