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IST 220 Chapter 3 and 4 quiz
Terms in this set (22)
c. SIP is a control protocol for VoIP and is responsible for call maintenance tasks.
Which of the following is a VoIP signaling protocol used to set up, maintain, and tear down VoIP phone calls? .a. MX b. RJ-45 c. SIP d. IMAP
b, c. Cat 5e and Cat 6 are often used for Fast Ethernet networks
Which of the following categories of UTP cabling are commonly used for 1000BASE-T networks? (Choose two.) a. Cat 5 b. Cat 5e c. Cat 6 d. Cat 6f
. b. Plenum cable is of a special construction for use in the plenum spaces.
3. Which type of cable might be required for installation in a drop ceiling, which is used as an open-air return duct? a. Riser b. Plenum c. Multimode d. Twin-axial
b. The best answer here is switch because, unlike a multilayer switch, this device must use MAC addressing for frame forwarding.
Which network infrastructure device primarily makes forwarding decisions based on Layer 2 MAC addresses?a. Router b. Switch c. Hubd. Multilayer switch
d. Routers make their forwarding decisions using IP addresses at Layer 3 of the OSI model. Specifically, the destination IP address is the key piece of information used by default.
A router operating at Layer 3 primarily makes its forwarding decisions based on what address?a. Destination MAC address b. Source IP address c. Source MAC address d. Destination IP address
a, c. Bridges are slower than switches (typically) and they tend to lack the port density of switches.
Identify two differences between an Ethernet bridge and an Ethernet switch. (Choose two.)a. Switches use ASICs to make forwarding decisions, whereas bridges make their forwarding decisions in software. b. Bridges typically operate faster than switches. c. Switches usually have higher port densities than bridges. d. Bridges can base their forwarding decisions on logical network layer addresses.
. A router creates a broadcast domain on each of the router (Layer 3) ports
A router has 12 ports. How many broadcast domains does the router have?a. None b. 1 c. 2 d. 12
d. A switch creates a collision domain on each port by default.
. A switch has 12 ports. How many collision domains does the switch have?a. None b. 1 c. 2 d. 12
c. The DHCPDISCOVER message is sent by a client in order to try and locate a DHCP server and IP address information.
. What is the first DHCP message sent by a client attempting to obtain IP address information from a DHCP server?a. DHCPOFFER b. DHCPACK c. DHCPDISCOVER d. DHCPREQUEST
a. A content switch is one form of network load balancer. These devices distribute client requests across servers hosting content.
What specialized network device is commonly used to load-balance traffic across multiple servers in a group?a. Content switch b. Firewall c. DNS server d. Content engine
b. Ant+ is found in IoT and is specialized wireless for monitoring sensor data. Garmin helped create this technology.
What IoT technology is specialized for monitoring sensor data and is ultimately led by Garmin?a. Z-Wave b. Ant+ c. Bluetooth d. RFID
c. SDN is becoming more and more popular today. This permits the centralized control and management of devices throughout the network from a single point. Usually, a graphical user interface provides the administrator interface.
Automating the management and configuration of many different network devices thanks to a centralized controller refers to what technology? a. Content distribution b. Virtualized networking c. Software-defined networking d. Internet of Things
a. A 1000BASE-T Ethernet network features a distance limitation of 100 m.
. Identify the distance limitation of a 1000BASE-T Ethernet network. a. 100 m b. 185 m c. 500 m d. 2 km
d. A random back-off timer is used in the CSMA/CD network once a collision is detected.
. If two devices simultaneously transmit data on an Ethernet network and a collision occurs, what does each station do in an attempt to resend the data and avoid another collision? a. Each device compares the other device's priority value (determined by IP address) with its own, and the device with the highest priority value transmits first. b. Each device waits for a clear-to-send (CTS) signal from the switch. c. Each device randomly picks a priority value, and the device with the highest value transmits first. d. Each device sets a random back-off timer, and the device will attempt retransmission after the timer expires.
. b. 100GBASE-SR10 Ethernet uses multimode fiber.
. What kind of media is used by 100GBASE-SR10 Ethernet? a. UTP b. MMF c. STP d. SMF
a, b. VLANs are also IP subnets. A router must route between these subnets. The VLAN is also a broadcast domain.
. Which of the following statements are true regarding VLANs? (Choose two.) a. A VLAN has a single broadcast domain. b. For traffic to pass between two VLANs, that traffic must be routed. c. Because of a switch's MAC address table, traffic does not need to be routed to pass between two VLANs.d. A VLAN has a single collision domain.
. a. The 802.1Q native VLAN is the only VLAN in the Layer 2 domain that is not tagged.
. What name is given to a VLAN on an IEEE 802.1Q trunk whose frames are not tagged? a. Native VLAN b. Default VLAN c. Management VLAN d. VLAN 0
. b. The designated port is forwarding, and there must be one on every network segment. Remember, all root ports are designated by default.
In a topology running STP, every network segment has a single ______________ port, which is the port on that segment that is closest to the root bridge in terms of cost. a. Root b. Designated c. Nondesignated d. Nonroot
b. 802.3ad is the open standard version of link aggregation.
What is the IEEE standard for link aggregation? a. 802.1Q b. 802.3ad c. 802.1d d. 802.3af
. b. IEEE 802.3af standard specifies 15.4W as the maximum amount of power a switch is allowed to provide per port.
. What is the maximum amount of power a switch is allowed to provide per port according to the IEEE 802.3af standard? a. 7.7W b. 15.4W c. 26.4W d. 32.4W
c. Port mirroring permits frame analysis in a switched network.
. What switch feature allows you to connect a network sniffer to a switch port and tells the switch to send a copy of frames seen on one port out the port to which your network sniffer is connected? a. Port interception b. Port duplexing c. Port mirroringd. Port redirect
. b. 802.1X features a supplicant, an authentication server, and an authenticator. The authentication server is responsible for actually checking the credentials.
Which IEEE 802.1X component checks the credentials of a device wanting to gain access to the network? a. Supplicant b. Authentication server c. Access point d. Authenticator
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