Quiz
Cisco Chapter 5
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Fragen in diesem Quiz (22)
1What are two features of ARP? (Choose two.)
- AIf a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.
- BIf no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment.
- CWhen a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses.
- DIf a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.
- EAn ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address.
- AIf a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.
2Which statement is true about MAC addresses?
- AMAC addresses are implemented by software.
- BThe first three bytes are used by the vendor assigned OUI.
- CThe ISO is responsible for MAC addresses regulations.
- DA NIC only needs a MAC address if connected to a WAN.
3What is a characteristic of a contention-based access method?
- AIt is a nondeterministic method.
- BIt processes more overhead than the controlled access methods do.
- CIt scales very well under heavy media use.
- DIt has mechanisms to track the turns to access the media.
4Which two statements describe features or functions of the logical link control sublayer in Ethernet standards? (Choose two.)
- ALogical link control is implemented in software.
- BThe data link layer uses LLC to communicate with the upper layers of the protocol suite.
- CThe LLC sublayer interacts directly with the NIC driver software.
- DThe LLC sublayer is responsible for the placement and retrieval of frames on and off the media.
- ELogical link control is specified in the IEEE 802.3 standard.
5What is the purpose of the preamble in an Ethernet frame?
- Ais used for timing synchronization
- Bis used to identify the destination address
- Cis used to identify the source address
- Dis used as a padding for data
6What is the Layer 2 multicast MAC address that corresponds to the Layer 3 IPv4 multicast address 224.139.34.56?
- A01-00-5E-0B-22-38
- BFE-80-00-0B-22-38
- CFF-FF-FF-0B-22-38
- D00-00-00-0B-22-38
- E01-5E-00-0B-22-38
7Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.)
- ADestination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.
- BDestination IP addresses in a packet header remain constant along the entire path to a target host.
- CDestination MAC addresses will never change in a frame that goes across seven routers.
- DA packet that has crossed four routers has changed the destination IP address four times.
- EEvery time a frame is encapsulated with a new destination MAC address, a new destination IP address is needed.
8Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next?
- APC2 will send an ARP reply with its MAC address.
- BRT1 will send an ARP reply with its Fa0/0 MAC address.
- CRT1 will send an ARP reply with the PC2 MAC address.
- DSW1 will send an ARP reply with its Fa0/1 MAC address.
- ESW1 will send an ARP reply with the PC2 MAC address.
9A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address?
- AIt will send an ARP request for the MAC address of the default gateway.
- BIt will send a request to the DNS server for the destination MAC address.
- CIt will send an ARP request for the MAC address of the destination device.
- DIt will send the frame and use its own MAC address as the destination.
- EIt will send the frame with a broadcast MAC address.
10What are two potential network problems that can result from ARP operation? (Choose two.)
- AOn large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays.
- BNetwork attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.
- CMultiple ARP replies result in the switch MAC address table containing entries that match the MAC addresses of hosts that are connected to the relevant switch port.
- DManually configuring static ARP associations could facilitate ARP poisoning or MAC address spoofing.
- ELarge numbers of ARP request broadcasts could cause the host MAC address table to overflow and prevent the host from communicating on the network.
11A network administrator is connecting two modern switches using a straight-through cable. The switches are new and have never been configured. Which three statements are correct about the final result of the connection? (Choose three.)
- AThe link between the switches will work at the fastest speed that is supported by both switches.
- BThe link between switches will work as full-duplex.
- CThe auto-MDIX feature will configure the interfaces eliminating the need for a crossover cable.
- DThe connection will not be possible unless the administrator changes the cable to a crossover cable.
- EThe duplex capability has to be manually configured because it cannot be negotiated.
- FIf both switches support different speeds, they will each work at their own fastest speed.
12A Layer 2 switch is used to switch incoming frames from a 1000BASE-T port to a port connected to a 100Base-T network. Which method of memory buffering would work best for this task?
- Ashared memory buffering
- Blevel 1 cache buffering
- Cfixed configuration buffering
- Dport-based buffering
13When would a switch record multiple entries for a single switch port in its MAC address table?
- Awhen another switch is connected to the switch port
- Bwhen the switch is configured for Layer 3 switching
- Cwhen a router is connected to the switch port
- Dwhen multiple ARP broadcasts have been forwarded
14Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?
- AThe switch will forward the frame to all ports except port 4.
- BThe switch will forward the frame to all ports.
- CThe switch will forward the frame only to port 2.
- DThe switch will discard the frame.
- EThe switch will forward the frame only to ports 1 and 3.
15Which two statements describe a fixed configuration Ethernet switch? (Choose two.)
- AA fixed configuration switch may be stackable.
- BThe number of ports on the switch cannot be increased.
- CAn SVI cannot be configured on the switch.
- DThe port density of the switch is determined by the Cisco IOS.
- EThe switch cannot be configured with multiple VLANs.
16How does adding an Ethernet line card affect the form factor of a switch?
- ABy expanding the port density
- Bby increasing the back plane switching speed
- Cby expanding the NVRAM capacity
- Dby making the switch stackable
17A network administrator issues the following commands on a Layer 3 switch:
DLS1(config)# interface f0/3
DLS1(config-if)# no switchport
DLS1(config-if)# ip address 172.16.0.1 255.255.255.0
DLS1(config-if)# no shutdown
DLS1(config-if)# end
What is the administrator configuring?- Aa routed port
- Ba Cisco Express Forwarding instance
- Ca trunk interface
- Da switched virtual interface
18Which address or combination of addresses does a Layer 3 switch use to make forwarding decisions?
- AMAC and IP addresses
- BMAC address only
- CMAC and port addresses
- Dport address only
- EIP address only
19What statement illustrates a drawback of the CSMA/CD access method?
- ACollisions can decrease network performance.
- BDeterministic media access protocols slow network performance.
- CCSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.
- DIt is more complex than non-deterministic protocols.
20The binary number 0000 1010 can be expressed as ______ in hexadecimal.
- A0A
- BA1
- CB2
- DC6
- E2A
21Open the PT Activity. Perform the tasks in the activity instruction and then answer the question.
What destination address will PC1 include in the destination address field of the Ethernet frame that it sends to PC2?
- A0030.a3e5.0401
- B00e0.b0be.8014
- C192.168.0.34
- D192.168.0.17
- E0007.ec35.a5c6
22Open the PT Activity. Perform the tasks in the activity instruction and then answer the question.
What destination address will PC1 include in the destination address field of the Ethernet frame that it sends to PC2?
- A0030.a3e5.0401
- B00e0.b0be.8014
- C192.168.0.34
- D192.168.0.17
- E0007.ec35.a5c6
Informationen
- Beschreibung
- Quiz am Cisco Chapter 5, erstellt von Tim Tam am 18/08/2014.
- Autor
- Tim Tam
- Sprache
- English
- Aufrufe
- 75
- Verlauf
- Erstellt am 18 Aug 2014 · aktualisiert am 19 Feb 2016
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