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Convert a decimal number 15 to the binary number.
A) It is a binary number.
B) 1100
C) 1101
D) 1111
Four-way closes use ________ segments.
A) FIN
B) RST
C) either A or B
D) neither A nor B
What organization creates Ethernet standards? (Give the most specific answer.)
A) IEEE
B) IETF
C) ISO
D) OSI
Oversight activities include ________.
A) vulnerability testing
B) creating guidelines
C) both A and B
D) neither A nor B
Which of the following DSL services tends to be symmetric in speed?
A) residential
B) business
C) both A and B
D) neither A nor B
In NAT, the ________ creates new external source IP addresses and port numbers.
A) router
B) firewall
C) source host
D) destination host
A company is free to select whatever ________ dynamic routing protocol it wishes.
A) interior
B) exterior
C) both A and B
D) neither A nor B
The electrical signal generated by a microphone is called a(n) ________ signal.
A) binary
B) digital
C) analog
D) Either A or B.
Router connectors are called ________.
A) sockets
B) plugs
C) interfaces
D) ports
In Skype, ________ is the process where a Skype application looks up the username
and IP address of the party it wants to contact.
A) login
B) directory search
C) transport
D) signaling
Which UTP quality levels are needed to send signals 100 meters at 10 gigabits per
second?
A) category 6
B) category 6A
C) both A and B
D) neither A nor B
A TCP segment begins with octet 8,658 and ends with octet 12,783. What number does
the sending host put in the sequence number field?
A) 8,658
B) 8,659
C) 12,783
D) 12,784
Dynamic ________ protocols allow routers to transmit routing table information to one
another.
A) routing
B) transport
C) synchronization
D) none of the above
Which element of the Skype network is in charge of signaling?
A) the login server
B) host nodes
C) super nodes
D) media gateways
Ethernet can offer ________ priority levels.
A) up to 2
B) up to 4
C) up to 8
D) Ethernet cannot offer priority levels.
802.1X requires security between the supplicant and the authenticator in ________.
A) Ethernet
B) 802.11
C) both A and B
D) neither A nor B
Host P transmits a SYN segment to Host Q. If host Q is willing to open the connection,
it will transmit a(n) ________ segment.
A) ACK
B) SYN
C) SYN/ACK
D) none of the above
The second-lowest standards layer is the ________ layer. (Read the question and
answers carefully.)
A) physical
B) data link
C) Internet
D) none of the above
Tricking users into doing something against their security interests is ________.
A) social engineering
B) hacking
C) both A and B
D) neither A nor B
If a destination host does not receive a segment, it will ________.
A) transmit an ACK segment
B) transmit a NAC segment
C) transmit an RSND segment
D) none of the above
Traffic shaping ________.
A) limits the amount of some types of traffic
B) does not admit some types of traffic
C) both A and B
D) neither A nor B
In LANs, optical fiber typically is used in ________.
A) trunk lines
B) access lines
C) workgroup switches
D) core switches
Which of the following affects what throughput an individual user will receive?
A) being in a moving car
B) being far from the cellsite
C) both A and B
D) neither A nor B
Creating switching tables is an example of ________.
A) forwarding
B) routing complexity
C) hardwiring
D) control
Which UTP quality levels can send signals at 10 gigabits per second?
A) category 6
B) category 6A
C) both A and B
D) neither A nor B
IP is ________.
A) reliable
B) unreliable
C) semi-reliable
D) unreliable or reliable depending on the situation
Ethernet standards are specified at the ________ layer.
A) Internet
B) transport
C) both A and B
D) neither A nor B
In tunnel mode, IPsec provides protection ________.
A) all the way between the two hosts
B) only between the IPsec servers
C) both A and B
D) neither A nor B
If throughput falls substantially below a QoS guaranteed speed, the ISP ________.
A) always pays a penalty
B) may pay a penalty
C) does not pay a penalty
D) may renegotiate the QoS guarantee for speed
In SNMP, the manager communicates directly with a(n) ________.
A) managed device
B) agent
C) object
D) access point
At what layer would you find frames?
A) 1
B) 2
C) 3
D) 4
In QoS, the S stands for ________.
A) software
B) security
C) service
D) satisfaction
Internet standards are published as ________.
A) RFCs
B) IETFs
C) TCP/IPs
D) Internet Protocols
