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Cnit 344 Exam 2 Questions And Answers With Verified Solutions Already Passed!!!
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Cnit 344 Exam 2 Questions And Answers With Verified Solutions Already Passed!!!
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Cnit 344 Exam 2 Questions And AnswersWith Verified Solutions Already
Passed!!!
The private IP address space is not routable on the public Internet -
ANSWER✔✔True
DHCP is only capable of providing layer 3 addressing to hosts on a single subnet -
ANSWER✔✔False
DHCP is build on top of the BootP framework - ANSWER✔✔True
A host may use an IP address indefinitely once it has been issued a lease from a
DHCP server - ANSWER✔✔False
All DHCP messages are broadcast at layer 2 and layer 3 - ANSWER✔✔True
A host will attempt to contact the exact same DHCP server that issued its current
lease when HALF the lease time has expired - ANSWER✔✔True
The Root and Designated Port are two of the types of ports used in STP
configurations - ANSWER✔✔True
Ping is the most popular implementations of ICMP messages - ANSWER✔✔True
According to the RFC, All hosts must respond to ICMP messages -
ANSWER✔✔False
There is no inherent security designed into ICMP - ANSWER✔✔True
ICMP provides a robust control mechanism to force specific IP behaviors on the
network - ANSWER✔✔False (ICMP for feedback)
NAT is a security mechanism to hide real IPs from the public internet -
ANSWER✔✔True (Hides entire internal network behind an address)
, If an IP address is not a reserved private address, then NAT/PAT is not deployed at
the edge of the network for this host to connect to the internet -
ANSWER✔✔True (Network Address Translation saves ip addresses. private ip
networks using unregistered ips can connect to internet. Basically, the router is
between private and public network, so 1 ip represents many computers)
PAT can map multiple inside addresses to a single outside address -
ANSWER✔✔True
NAT/PAT relives the IPv4 address depletion problem - ANSWER✔✔True*
Port forwarding is a form of NAT/PAT that is typically used for servers -
ANSWER✔✔True (port forward vs pat: port forwarding translate to a specific
device
In the OSI model, the transport layer enables internetworking - ANSWER✔✔False
(Layer 3: Network layer moves data through other networks - where ips are
applied for routing)
The "/32" notation in IPv4 address indicate there are 32 bits in the network
portion - ANSWER✔✔True (CIDR for network 255.255.255.0 = /24)
TCP and UDP are both reliable because they are connection-oriented -
ANSWER✔✔False (UDP unreliable but faster (streaming!))
In an established TCP session between 2 hosts, when a message is lost in
transmission the connection must be reset - ANSWER✔✔False (resent with every
packet already sent after it)
A UDP connection flow must be terminated with the FIN-FIN/ACK-ACK process,
just like TCP - ANSWER✔✔False (no handshake because UDP has no delivery
verification headers!!! just crosses fingers)
A root bridge is used to route DNS information to routers - ANSWER✔✔False (A
root bridge is a reference point for spanning tree for redundant paths to block)
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