Which field/s of ICMPv6 packet header has/have a provision of minimal integrity level concerning to verification for ICMP messages? a. Type b. Code c. Checksum d. All of the above

Which field/s of ICMPv6 packet header
has/have a provision of minimal integrity level
concerning to verification for ICMP
messages?
a. Type
b. Code
c. Checksum
d. All of the above
by

1 Answer

Answer :

c. Checksum
by

Related questions

Which provision can resolve / overcome the shortcomings associated with duplication or failure condition of Stop and Wait Automatic Repeat Request protocol especially due to loss of data frames or non reception of acknowledgement? a. Provision of sequence number in the header of message b. Provision of checksum computation c. Both a & b d. None of the above

Description : Which provision can resolve / overcome the shortcomings associated with duplication or failure condition of Stop and Wait Automatic Repeat Request protocol especially due to loss of data frames or non reception ... message b. Provision of checksum computation c. Both a & b d. None of the above

Last Answer : Provision of sequence number in the header of message

Which of the following is not a field in TCP header? a. Sequence number b. Fragment offset c. Checksum d. Window size

Description : Which of the following is not a field in TCP header? a. Sequence number b. Fragment offset c. Checksum d. Window size

Last Answer : b. Fragment offset

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

In packet-filtering router, the following information can be external from the packet header. i) Source IP address ii) Destination IP address iii) TCP/UDP source port iv) ICMP message type v) TCP/UDP destination port A) i, ii, iii and iv only B) i, iii, iv and v only C) ii, iii, iv and v only D) All i, ii, iii, iv and v

Description : In packet-filtering router, the following information can be external from the packet header. i) Source IP address ii) Destination IP address iii) TCP/UDP source port iv) ICMP message type v) TCP/UDP destination port A) i, ii, ... iv and v only C) ii, iii, iv and v only D) All i, ii, iii, iv and v

Last Answer : D) All i, ii, iii, iv and v

In packet-filtering router, the following information can be external from the packet header. i) Source IP address ii) Destination IP address iii) TCP/UDP source port iv) ICMP message type v) TCP/UDP destination port A) i, ii, iii and iv only B) i, iii, iv and v only C) ii, iii, iv and v only D) All i, ii, iii, iv and v

Description : In packet-filtering router, the following information can be external from the packet header. i) Source IP address ii) Destination IP address iii) TCP/UDP source port iv) ICMP message type v) TCP/UDP destination port A) i, ii ... and v only C) ii, iii, iv and v only D) All i, ii, iii, iv and v

Last Answer : D) All i, ii, iii, iv and v

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

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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

For which one of the following reasons does Internet Protocol (IP) use the time-to- live (TTL) field in the IP datagram header? a. Ensure packets reach destination within that time b. Discard packets that reach later than that time c. Prevent packets from looping indefinitely d. Limit the time for which a packet gets queued in intermediate routers.

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Last Answer : c. Prevent packets from looping indefinitely

Using which method in transport layer data integrity can be ensured? a. Checksum b. Repetition codes c. Cyclic redundancy checks d. Error correcting codes

Description : Using which method in transport layer data integrity can be ensured? a. Checksum b. Repetition codes c. Cyclic redundancy checks d. Error correcting codes

Last Answer : a. Checksum

Which of the following is true about ICMP messages? A) An ICMP error message may be generated for an ICMP error message. B) An ICMP error message may be generated only for the first fragment. C) An ICMP error message may be generated for a multicast datagram. D) noneis true

Description : Which of the following is true about ICMP messages? A) An ICMP error message may be generated for an ICMP error message. B) An ICMP error message may be generated only for the first fragment. C) An ICMP error message may be generated for a multicast datagram. D) noneis true

Last Answer : An ICMP error message may be generated only for the first fragmen

Which of the following is true about ICMP messages? A) An ICMP error message may be generated for an ICMP error message. B) An ICMP error message may be generated for each fragment. C) An ICMP error message may be generated for a multicast datagram. D) noneis true

Description : Which of the following is true about ICMP messages? A) An ICMP error message may be generated for an ICMP error message. B) An ICMP error message may be generated for each fragment. C) An ICMP error message may be generated for a multicast datagram. D) noneis true

Last Answer : noneis true

ICMP messagesare divided into two broad categories: _____________. A) query and error reporting messages B) request and response messages C) request and reply messages D) noneof the above

Description : ICMP messagesare divided into two broad categories: _____________. A) query and error reporting messages B) request and response messages C) request and reply messages D) noneof the above

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Last Answer : All of theabove

An error-detectingcode inserted asa field in a blockof data tobe transmitted is known as A. Frame check sequence B. Error detecting code C. Checksum D. flow control E. None of the above

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Last Answer : Frame check sequence

In IPv4 header, the field is needed to allow the destination host to determine which datagram a newly arrived fragment belongs to. (A) identification (B) fragment offset (C) time to live (D) header checksum

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Last Answer : (A) identification

Which of the following is anecessary part of the IPv6 datagram? A) Base header B) Extension header C) Data packet from the upper layer D) (a) and (c)

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Last Answer : Base header

If the sender is a host and wants tosend a packet toanotherhost on another network, the logical address that must be mapped to a physical address is ______. A) thedestination IP address in the datagram header B) the IP address of therouter found inthe routing table C) either a or b D) noneof the above

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Last Answer : the IP address of therouter found inthe routing table

f the sender is a host and wants tosend a packet toanotherhost on the samenetwork, the logical address that must be mapped to a physical address is ______. A) thedestination IP address in the datagram header B) the IP address of therouter found inthe routing table C) either a or b D) noneof the above

Description : f the sender is a host and wants tosend a packet toanotherhost on the samenetwork, the logical address that must be mapped to a physical address is ______. A) thedestination IP address in the datagram ... the IP address of therouter found inthe routing table C) either a or b D) noneof the above

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State weather the following statement is true or false for IPV6 Addressing 1). IPV6 is a routable protocol that addresses, routes, fragments, and reassembles packets 2).IPV6 is a connectionless, unreliable datagram protocol. 3). An IPV6 packet consists of an IPV6 header and an IPV6 payload. 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

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

The IPv4header field formerly knownas the service type field is now calledthe _______ field. A) IETF B) checksum C) differentiatedservices D) noneof the above

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Which of the following summation operations is performed onthe bits to checkanerror-detecting code? A. Codec B. Coder-decoder C. Checksum D. Attenuation

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Last Answer : a protocol that handles error andcontrol messages

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Last Answer : The Internet Control Message Protocol (ICMP) supports the unreliable and connectionless Internet Protocol (IP). * ICMP messages are encapsulated in IP datagrams. There are two categories of ICMP messages ... query messages, the data section carries extra information based on the type of the query.

Using which layer in transport layer data integrity can be assured? A. Checksum B. Repetition codes C. Cyclic redundancy checks D. Error correction codes

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Last Answer : A. Checksum 

7.How does traceroute work? A. It uses an ICMP destination-unreachable message to elicit the name of a router. B. It sends a specially crafted IP packet to a router to locate the number of hops from the sender to the destination network. C. It uses a protocol that will be rejected by the gateway to determine the location. D. It uses the TTL value in an ICMP message to determine the number of hops from the sender to the router.

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Last Answer : D. It uses the TTL value in an ICMP message to determine the number of hops from the sender to the router.

In the MIME header field, ____describes how the object within the body was encoded in order that it be included in the message using a mail-safe form. a. content-type b. content-transfer-encoding c. content-description d. content-id

Description : In the MIME header field, ____describes how the object within the body was encoded in order that it be included in the message using a mail-safe form. a. content-type b. content-transfer-encoding c. content-description d. content-id

Last Answer : b. content-transfer-encoding

The next header t is an _____ field of Authentication Header that identifies the type of what follows. A. 16-bit B. 64-bit C. 8-bit D. 32-bit

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Last Answer : C. 8-bit

Which one of the following statements is NOT correct about HTTP cookies? a. A cookies is a piece of code that has the potential to compromise the security of an Internet user b. A cookie gains entry to the user’s work area through an HTTP header c. A cookie has an expiry date and time d. Cookies can be used to track the browsing pattern of a user at a particular site

Description : Which one of the following statements is NOT correct about HTTP cookies? a. A cookies is a piece of code that has the potential to compromise the security of an Internet user b. A cookie gains entry ... and time d. Cookies can be used to track the browsing pattern of a user at a particular site

Last Answer : a. A cookies is a piece of code that has the potential to compromise the security of an Internet user

Which protocol carries messages such as destination Unreachable, Time Exceeded, Parameter Problem, Source Quench, Redirect, Echo, Echo Reply, Timestamp, Information Request, Information Reply, Address Request, and Address Reply? * ICMP * UDP * TCP * TFTP

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Last Answer : Correct answer: A ICMP (Internet Control Message Protocol) is a network layer internet protocol described in RFC # 792. ICMP reports IP packet information such as destination Unreachable, Time ... Echo Reply, Timestamp, Information Request, Information Reply, Address Request, and Address Reply.

In IPv6, when a datagram needs tobediscarded ina congested network, the decision is basedon the _______ field in thebase header. A) hop limit B) priority C) nextheader D) noneof the above

Description : In IPv6, when a datagram needs tobediscarded ina congested network, the decision is basedon the _______ field in thebase header. A) hop limit B) priority C) nextheader D) noneof the above

Last Answer : priority

In IPv6, the _______ field inthe baseheader restricts the lifetime ofa datagram. A) version B) next-header C) hoplimit D) neighbor-advertisemen

Description : In IPv6, the _______ field inthe baseheader restricts the lifetime ofa datagram. A) version B) next-header C) hoplimit D) neighbor-advertisemen

Last Answer : hoplimit

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

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 following statement(s) is/are true concerning initial microbiologic diagnostic techniques. a. Appropriate expeditious transport of specimens to the microbiology laboratory is essential for obtaining accurate clinical information b. The use of potassium hydroxide in preparing a specimen slide for light microscopy will be useful in identification of anaerobic bacteria c. Antibiotic sensitivity is determined by exposing the specific microorganism to varying amounts of antibiotic with the concentration of the antibiotic inhibiting growth referred to as the MIC (minimal inhibitory concentration) d. Serum levels of antimicrobial agents should achieve in excess of a 4-to 8-fold increase over the MIC to be considered clinically efficacious.

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Last Answer : Answer: a, c, d Because most surgical infections are polymicrobial, specimens should be cultured for aerobic and anaerobic bacteria, as well as fungi. Although aerobic and aerotolerant ... fold increase over MIC during the peak serum level have been demonstrated to be clinically efficacious

The checksum of0000 and0000 is__________. A) 1111 B) 0000 C) 1110 D) 0111

Description : The checksum of0000 and0000 is__________. A) 1111 B) 0000 C) 1110 D) 0111

Last Answer : 0111

The checksum of1111 and1111 is_________. A) 1111 B) 0000 C) 1110 D) 0111

Description : The checksum of1111 and1111 is_________. A) 1111 B) 0000 C) 1110 D) 0111

Last Answer : 1110

Which error detection method consists of just one redundant bit per data unit? A) Simple parity check B) Two-dimensionalparity check C) CRC D) Checksum

Description : Which error detection method consists of just one redundant bit per data unit? A) Simple parity check B) Two-dimensionalparity check C) CRC D) Checksum

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Which error detection method usesone's complement arithmetic? A) Simple parity check B) Two-dimensionalparity check C) CRC D) Checksum

Description : Which error detection method usesone's complement arithmetic? A) Simple parity check B) Two-dimensionalparity check C) CRC D) Checksum

Last Answer : Checksum

An ICMP message has _____ headerand a variable-size data section. A) a 16-byte B) a 32-byte C) an 8-byteD) noneof the above

Description : An ICMP message has _____ headerand a variable-size data section. A) a 16-byte B) a 32-byte C) an 8-byte D) noneof the above

Last Answer : an 8-byte

ICMP is a _________ layer protocol. A) datalink B) transport C) network D) noneof the above

Description : ICMP is a _________ layer protocol. A) datalink B) transport C) network D) noneof the above

Last Answer : network

DNS can obtain the of host if its domain name is known and vice versa. A) Station address B) IP address C) Port address D) Checksum

Description : DNS can obtain the of host if its domain name is known and vice versa. A) Station address B) IP address C) Port address D) Checksum

Last Answer : B) IP address

A layer-4 firewall (a device that can look at all protocol headers up to the transport layer) CANNOT a. block entire HTTP traffic during 9:00PM and 5 :0OAM b. block all ICMP trafficc. stop incoming traffic from a specific IP address but allow outgoing traffic to the same IP address d. block TCP traffic from a specific user on a multi-user system during 9:00PM and 5:00AM

Description : A layer-4 firewall (a device that can look at all protocol headers up to the transport layer) CANNOT a. block entire HTTP traffic during 9:00PM and 5 :0OAM b. block all ICMP traffic c. stop ... address d. block TCP traffic from a specific user on a multi-user system during 9:00PM and 5:00AM

Last Answer : d. block TCP traffic from a specific user on a multi-user system during 9:00PM and 5:00AM

UDP packets are called as _________ a. Segments b. Checksum c. Frames d. Datagrams

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Last Answer : d. Datagrams

What are the problems involved in an IP Fragmentation Process? A. Loss of any fragment results in rejection of all datagrams B. Management of buffer space is essential to handle reassembly process C. No necessity of initializing the timer after the reception of initial fragment D. Multiple attempts can be made to recover ICMP error message due to connection-oriented IP service a. A & B b. C & D c. B& C d. A & D

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Last Answer : a. A & B

ICMP stands for __________ a. Internet Coordinate Message Protocol b. Internet Control Message Protocol c. Interconnect Control Message Protocol d. Interconnect Coordinate Message Protocol

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Last Answer : b. Internet Control Message Protocol

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Last Answer : a. error and diagnostic functions

If the frame to be transmitted is 1101011011 and the CRC polynomial to be used for generating checksum is x 4+ x + 1, then what is the transmitted frame? a. 11010110111011 b. 11010110111101 c. 11010110111110 d. 11010110111001

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Which protocol does switch use at the layer 2 for finding MAC address? a. ICMP b. UDP c. ARP d. TCP

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