Computer Networking Ultimate Exam: Quiz!
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- 1.
The wireless device that is marked X in the image below is a ________.- A.
Wireless controller
- B.
Wireless Switch
- C.
Wireless Router
- D.
Wireless Access Point
- 2.When a wireless channel uses more than one frequency the transmission method is called ________ spectrum.
- A.
Multi
- B.
Long
- C.
Spread
- D.
Broad
- 3.Which of the following is NOT a variation of spread-spectrum technology?
- A.
DSSS
- B.
OFDM
- C.
DFSS
- D.
FHSS
- 4.Which of the following wireless standards operate at a Maximum Bandwidth of less than 20Mbps?
- A.
802.11b
- B.
802.11n
- C.
802.11a
- D.
802.11g
- 5.Which is NOT a security threat for WLANs?
- A.
Warchalking
- B.
Wardialing
- C.
WEP and WPA security cracking
- D.
Rogue Acess Point
- 6.To protect WLAN traffic from eavesdroppers, a variety of security standards and practices have been developed. Which of the following will NOT protect your wireless network?
- A.
Enabling SSID broadcast
- B.
Preshared Key
- C.
MAC address filtering
- D.
IEEE 802.1x
- 7.Which of the following is NOT a WLAN security standard?
- A.
WPA2
- B.
WAP
- C.
WPA
- D.
WEP
- 8.Which of the following is a category of wireless antennas that are based on coverage?
- A.
Wire Equivelant Protocol WEP
- B.
SSID
- C.
Undirectional
- D.
Omnidirectional
- E.
WLAN
- 9.An omnidirectional antenna radiates power at relatively equal power levels in all directions. (Somewhat similar to the theoretical isotropic antenna.)
- A.
True
- B.
False
- 10.Ethernet uses carrier sense multiple access collision detection (CSMA/CD) technology. WLANs use a similar technology called carrier sense multiple access collision avoidances (CSMA/CA). Just as CSMA/CD is needed for half-duplex Ethernet connections, CSMA/CA is needed for WLAN connections, because of their half-duplex operation.
- A.
True
- B.
False
- 11.
The Wide Area Network (WAN) design below represents what type of fault-tolerant network design?
- A.
Redundant Network with no Single point of failure
- B.
Non-Redundant Network with A Single Point of Failure
- C.
Non-Redundant Network with no Single Point of Failure
- D.
Redundant Network with A Single Point of Failure
- 12.Which term is best described by the following definition: "Both NICs are active at the same time, and they each have their own MAC address"?
- A.
Active-passive
- B.
Active-standby
- C.
Active-live
- D.
Active-active
- 13.Which of the following is defined as a Cisco proprietary approach to first-hop redundancy?
- A.
HSRP
- B.
Cisco-RP
- C.
LACP
- D.
CARP
- 14.
What is the effective bandwidth in the WAN diagram below?
- A.
10 Mbps
- B.
1.544 Mbps
- C.
256 kbps
- D.
512 kbps
- 15.Which of the following is a mode of Network Interface Card (NIC) redundancy?
- A.
Active-standby
- B.
Common address reduncacy protocl carp
- C.
Collective standby
- D.
Hot Standby Router Protocol (HSRP):
- E.
Active-active
- 16.Which of the following is a mode of Layer 3 redundancy?
- A.
Common Address Redundancy Protocol (CARP)
- B.
Hot Standby Router Protocol (HSRP)
- C.
Collective standby
- D.
Active-standby
- E.
Active-active
- 17.Availability is not the same as reliability. An available network does not drop many packets. However, a reliable network is up and operational.
- A.
True
- B.
False
- 18.Quality of service (QoS) is a technology that allows a network design to strategically optimize network performance for select traffic types. This means, using QoS on a network device can identify which traffic types need to be sent first, how much bandwidth to allocate to various traffic types, which traffic types should be dropped first in the event of congestion, and how to make the most efficient use of the relatively limited bandwidth of an IP WAN.
- A.
True
- B.
False
- 19.In-network high availability measurement, what is the meaning of five nines?
- A.
Five out of every nine networks fail
- B.
Five out of every nine network administrators always available to take care of their network problem
- C.
five out of every user's computers is unavailable for access
- D.
Means the network should be up 99.999 percent of the time
- E.
The network has a maximum of 5 minutes of downtime per year
- F.
network has a maximum of 5 minutes of downtime per month
- 20.Marking alters bits within a frame, cell, or packet to indicate how the network should treat that traffic. Marking alone does not change how the network treats a packet. However, queuing tools in a switch or router can reference those markings and make decisions based on the markings.
- A.
True
- B.
False
- 21.The ________ command can be used to see the MAC address associated to an IP address.
- A.
ARP
- B.
Pathping
- C.
MAC
- D.
Netstat
- 22.The ________ command can be used to display IP address configuration parameters on a Windows PC. This command can also be used to release and renew a DHCP lease.
- A.
Arp
- B.
Ipconfig
- C.
Nbtstat
- D.
Ping
- 23.The ________ command can be used to display information about current sessions, including source and destination IP addresses and port numbers.
- A.
Ipstatus
- B.
Netstat
- C.
Ntstat
- D.
Networkstat
- 24.The ________ command can be used to resolve an FQDN to an IP address.
- A.
Fqdnlookup
- B.
Nslookup
- C.
Iplookup
- D.
Ipstat
- 25.The ________ command is one of the most commonly used command-line commands. It can be used to check IP connectivity between two network devices. Multiple platforms (for example, routers, switches, and hosts) support the ________ command.
- A.
Nbtstat
- B.
Netstat
- C.
Ipconfig
- D.
Ping
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