FIELD TECH III IV ACTUAL QUESTIONS
AND VERIFIED CORRECT ANSWERS
●● The address 68.56.189.17 belongs to which Internet protocol (IP)
class?
Answer: Class A
●● What happens to a datagram sent by a higher level protocol to a
127.x.y.z address?
Answer: The datagram loops back inside the host and never leaves the
network interface card (NIC).
●● Which device evaluates and acts upon a packet's Internet protocol
(IP) address?
Answer: Router.
●● The Network Layer must do what to a received frame first, in order
to determine the route over which it will forward the datagram to the
next network?
Answer: Decapsulate the packet.
●● What network information can be determined from a logical Internet
protocol (IP) address?
,Answer: The host portion and network portion.
●● The physical address of a device is processed by which layer of the
Open Systems Interconnection reference model (OSI/RM)?
Answer: The Physical Layer.
●● Which layer of the Open Systems Interconnection reference model
(OSI/RM) would you suspect as being the problem when packets are
arriving at the server but no information is being returned to the client?
Answer: The Data Link Layer.
●● All computers running on the transmission control protocol/Internet
protocol (TCP/IP) suite have which of the following in common?
Answer: Each computer is assigned its own Internet protocol (IP)
address.
●● A repeater operates at which layer of the Open Systems
Interconnection reference model (OSI/RM)?
Answer: The Transport Layer.
●● Which Dynamic Host Configuration Protocol (DHCP) network
address allocation mechanism assigns a host a temporary IP address?
Answer: Dynamic
,●● Which two choices are examples of trivial file transfer protocol
(TFTP) use? (Choose two.)
Answer: Download router upgrades. And
Software upgrades to IP telephones.
●● How does the Domain Name System (DNS) resolve fully qualified
domain names (FQDN) to IP addresses?
Answer: By looking up the names in an address mapping database.
●● Which TCP/IP application allows us to transfer files either within a
browser or at the command line?
Answer: File transfer protocol (FTP).
●● Which statement best describes Internet Message Access Protocol
(IMAP)?
Answer: IMAP allows users to scan email headers and choose email
messages to download from the email server.
●● To resolve fully qualified domain names (FQDN) to binary IP
addresses, resolvers contact which type of TCP/IP application server?
Answer: Domain Name System (DNS).
, ●● Which protocol allows clients to locate and download IP addressing
and configuration information on an automatically renewable (lease)
basis?
Answer: Dynamic Host Configuration Protocol (DHCP).
●● Which TCP/IP application allows a network user to remotely log on
and manipulate a network device?
Answer: Telnet.
●● Which three of the following are Dynamic Host Configuration
Protocol (DHCP) address allocation mechanisms? (Choose three.)
Answer: Automatic, Dynamic, Manual
●● Internet email uses which two protocols? (Choose two.)
Answer: Simple Mail Transfer Protocol (SMTP). And Post Office
Protocol version 3 (POP3).
●● If a Dynamic Host Configuration Protocol (DHCP) client fails to
renew its lease at the 50-percent point, what happens next?
Answer: It attempts to obtain a lease at 87.5-percent lease time.
●● Of the five trivial file transfer protocol (TFTP) packet types, which
three choices below are TFTP packet types? (Choose three.)
Answer: Read request, Write request, Acknowledgement
AND VERIFIED CORRECT ANSWERS
●● The address 68.56.189.17 belongs to which Internet protocol (IP)
class?
Answer: Class A
●● What happens to a datagram sent by a higher level protocol to a
127.x.y.z address?
Answer: The datagram loops back inside the host and never leaves the
network interface card (NIC).
●● Which device evaluates and acts upon a packet's Internet protocol
(IP) address?
Answer: Router.
●● The Network Layer must do what to a received frame first, in order
to determine the route over which it will forward the datagram to the
next network?
Answer: Decapsulate the packet.
●● What network information can be determined from a logical Internet
protocol (IP) address?
,Answer: The host portion and network portion.
●● The physical address of a device is processed by which layer of the
Open Systems Interconnection reference model (OSI/RM)?
Answer: The Physical Layer.
●● Which layer of the Open Systems Interconnection reference model
(OSI/RM) would you suspect as being the problem when packets are
arriving at the server but no information is being returned to the client?
Answer: The Data Link Layer.
●● All computers running on the transmission control protocol/Internet
protocol (TCP/IP) suite have which of the following in common?
Answer: Each computer is assigned its own Internet protocol (IP)
address.
●● A repeater operates at which layer of the Open Systems
Interconnection reference model (OSI/RM)?
Answer: The Transport Layer.
●● Which Dynamic Host Configuration Protocol (DHCP) network
address allocation mechanism assigns a host a temporary IP address?
Answer: Dynamic
,●● Which two choices are examples of trivial file transfer protocol
(TFTP) use? (Choose two.)
Answer: Download router upgrades. And
Software upgrades to IP telephones.
●● How does the Domain Name System (DNS) resolve fully qualified
domain names (FQDN) to IP addresses?
Answer: By looking up the names in an address mapping database.
●● Which TCP/IP application allows us to transfer files either within a
browser or at the command line?
Answer: File transfer protocol (FTP).
●● Which statement best describes Internet Message Access Protocol
(IMAP)?
Answer: IMAP allows users to scan email headers and choose email
messages to download from the email server.
●● To resolve fully qualified domain names (FQDN) to binary IP
addresses, resolvers contact which type of TCP/IP application server?
Answer: Domain Name System (DNS).
, ●● Which protocol allows clients to locate and download IP addressing
and configuration information on an automatically renewable (lease)
basis?
Answer: Dynamic Host Configuration Protocol (DHCP).
●● Which TCP/IP application allows a network user to remotely log on
and manipulate a network device?
Answer: Telnet.
●● Which three of the following are Dynamic Host Configuration
Protocol (DHCP) address allocation mechanisms? (Choose three.)
Answer: Automatic, Dynamic, Manual
●● Internet email uses which two protocols? (Choose two.)
Answer: Simple Mail Transfer Protocol (SMTP). And Post Office
Protocol version 3 (POP3).
●● If a Dynamic Host Configuration Protocol (DHCP) client fails to
renew its lease at the 50-percent point, what happens next?
Answer: It attempts to obtain a lease at 87.5-percent lease time.
●● Of the five trivial file transfer protocol (TFTP) packet types, which
three choices below are TFTP packet types? (Choose three.)
Answer: Read request, Write request, Acknowledgement
