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Total 370 questions
At which layer of the OSI model is RSTP used to prevent loops?
- A. physical
- B. data link
- C. network
- D. transport
Answer : B
In a switched environment, what does the IEEE 802.1Q standard describe?
- A. the operation of VTP
- B. a method of VLAN trunking
- C. an approach to wireless LAN communication
- D. the process for root bridge selection
- E. VLAN pruning
Answer : B
Which of the following are benefits of VLANs? (Choose three.)
- A. They increase the size of collision domains.
- B. They allow logical grouping of users by function.
- C. They can enhance network security.
- D. They increase the size of broadcast domains while decreasing the number of collision domains.
- E. They increase the number of broadcast domains while decreasing the size of the broadcast domains.
- F. They simplify switch administration.
Answer : B,C,E
What are three advantages of VLANs? (Choose three.)
- A. VLANs establish broadcast domains in switched networks.
- B. VLANs utilize packet filtering to enhance network security.
- C. VLANs provide a method of conserving IP addresses in large networks.
- D. VLANs provide a low-latency internetworking alternative to routed networks.
- E. VLANs allow access to network services based on department, not physical location.
- F. VLANs can greatly simplify adding, moving, or changing hosts on the network.
Answer : A,E,F
What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch?
- A. It creates a VLAN 999 interface.
- B. It designates VLAN 999 for untagged traffic.
- C. It blocks VLAN 999 traffic from passing on the trunk.
- D. It designates VLAN 999 as the default for all unknown tagged traffic.
Answer : B
Which two of these statements regarding RSTP are correct? (Choose two.)
- A. RSTP cannot operate with PVST+.
- B. RSTP defines new port roles.
- C. RSTP defines no new port states.
- D. RSTP is a proprietary implementation of IEEE 802.1D STP.
- E. RSTP is compatible with the original IEEE 802.1D STP.
Answer : B,E
Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.)
- A. VTP
- B. 802.1q
- C. IGP
- D. ISL
- E. 802.3u
Answer : B,D
Which two commands can be used to verify a trunk link configuration status on a given
Cisco switch interface? (Choose two.)
- A. show interface trunk
- B. show interface interface
- C. show ip interface brief
- D. show interface vlan
- E. show interface switchport
Answer : A,E
Which two of these are characteristics of the 802.1Q protocol? (Choose two.)
- A. It is used exclusively for tagging VLAN frames and does not address network reconvergence following switched network topology changes.
- B. It modifies the 802.3 frame header, and thus requires that the FCS be recomputed.
- C. It is a Layer 2 messaging protocol which maintains VLAN configurations across networks.
- D. It includes an 8-bit field which specifies the priority of a frame.
- E. It is a trunking protocol capable of carrying untagged frames.
Answer : B,E
A network administrator creates a layer 3 EtherChannel, bundling four interfaces into channel group 1. On what interface is the IP address configured?
- A. the port-channel 1 interface
- B. the highest number member interface
- C. all member interfaces
- D. the lowest number member interface
Answer : A
Which term describes a spanning-tree network that has all switch ports in either the blocking or fowarding state?
- A. converged
- B. redundant
- C. provisioned
- D. spanned
Answer : A
Refer to Exhibit:
How many broadcast domains are shown in the graphic assuming only the default VLAN is configured on the switches?
- A. one
- B. two
- C. six
- D. twelve
Answer : A
Refer to the exhibit.
A network administrator is configuring an EtherChannel between SW1 and SW2. The SW1 configuration is shown. What is the correct configuration for SW2?
- A. interface FastEthernet 0/1 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk
- B. interface FastEthernet 0/1 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk
- C. interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk
- D. interface FastEthernet 0/1 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk
Answer : C
VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan 3 command in interface configuration mode?
- A. The command is rejected.
- B. The port turns amber.
- C. The command is accepted and the respective VLAN is added to vlan.dat.
- D. The command is accepted and you must configure the VLAN manually.
Answer : C
Refer to the exhibit.
Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will
Switch-1 do with this data?
- A. Switch-1 will drop the data because it does not have an entry for that MAC address.
- B. Switch-1 will flood the data out all of its ports except the port from which the data originated.
- C. Switch-1 will send an ARP request out all its ports except the port from which the data originated.
- D. Switch-1 will forward the data to its default gateway.
Answer : B
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