Cisco Exam #642-811: BCMSN Exam (Whizlabs, set 2)
Test your knowledge of advanced Spanning Tree concepts, VLANs, inter-VLAN routing and multicasting for your CCNP and CCDP with these 10 sample questions.
courtesy of Whizlabs Software
Question:
1. PPP (Point to Point Protocol) is a WAN Protocol that can be used on Serial Link.
a. True
b. False
2. Which of the following devices would you connect to a switch by using a RJ-45-to- RJ-45 rollover cable?
a. Another switch
b. A client workstation
c. A console or data terminal
d. A router
3. To connect two catalyst switches, you need a ______________.
a. RJ-45 to RJ -45 rollover cable
b. CAT-5 UTP crossover cable
c. RJ-45 to RJ-45 straight cable
d. RJ-45 to DB-9 terminal cable
4. IGMP snooping must be disabled before you enable CGMP.
a. True
b. False
5. Which cabling could you use to connect two access layer switches?
a. RJ-45 to DB-9 terminal cable
b. Cat-5 UTP crossover cable
c. RJ-45 to RJ-45 rollover cable
d. RJ-45 to RJ-45 straight-through cable
6. Which one is required for interVLAN routing?
a. ISL
b. IEEE 802.1Q
c. Access switch
d. Route processor
7. Which of the following statements is true regarding a port status light on a switch?
a. It is used to see if a loop has occurred on the network.
b. It is used to identify RTS signaling.
c. When a device is connected to a port, the port status LED light comes on and stays on.
d. When a device is connected to a port, the port status LED light comes on, then goes off.
8. Which of the following command is used to see the virtual IP address of the HSRP active router?
a. show hsrp status
b. show hsrp standby address
c. show standby
d. show hsrp address
9. The native VLAN of the trunk link is the VLAN to which the port will belong if that link becomes non-trunk.
a. True
b. False
10. Which of the following, a switch must have a network connection to, in order for the CGMP to operate correctly on the switch?
a. Switch running IGMP
b. Router running CGMP
c. Switch running CGMP
d. Switch that has VLAN configured
1. Answer A is correct. The Point-to-Point Protocol (PPP) is a WAN Protocol that can be used on Serial Link. The Point-to-Point Protocol (PPP) is supported by Cisco. This protocol is most commonly used for dialup Internet access.
2. Answer C is correct. You should use a special RJ-45-to-RJ-45 rollover cable to connect a data terminal or console to the RJ-45 console port of a switch. An adapter may be needed to connect to the appropriate port on the data terminal or console. Be certain not to connect a live Ethernet connection, ISDN line, or analog telephone line to an RJ-45 console port on a switch; doing so may damage the switch. You should use an unshielded twisted pair (UTP) crossover cable if you want to connect a switch to a repeater or to another switch. You should use a standard, straight-through UTP cable to connect a router or a client workstation to a switch.
3. Answer B is correct. CAT 5 UTP crossover cable can be used to connect two switches.
Choices A, C, and D are incorrect. A management cable, a RJ-45 to DB-9 terminal cable, is used to connect a PC to a switch (or router). A RJ-45-to-RJ-45 rollover cable is used to connect the console port of the switch to a console PC or terminal. A straight cable can be used to connect a switch to a router or a workstation.
4. Answer A is correct. Before you enable CGMP on a switch, you must disable IGMP snooping if it is enabled. If you try to enable CGMP without first disabling IGMP snooping, an error message is generated.
5. Answer B is correct. Cat 5 UTP crossover cabling can be used to connect two switches.
Choice A is incorrect. A management cable, a RJ-45 to DB-9 terminal cable, is used to connect a PC to a switch (or router).
Choice C is incorrect. A RJ-45-to-RJ-45 rollover cable is used to connect the console port of the switch to a console PC or terminal.
Choice D is incorrect. A straight cable can be used to connect a switch to a router or a workstation.
6. Answer D is correct. The traffic has to be routed between the VLANs. A routing mechanism has to be provided for interVLAN communication.
Choices A and B are incorrect. Either IEEE 802.1Q or ISL trunking protocol can be used.
Choice C is also incorrect. Access switch has no use for interVLAN routing.
7. Answer C is correct. If a device is correctly connected to a port, and the device is powered on, the port light emitting diode (LED) will come on and stay on.
Choice A is incorrect as it is not used to see the loop.
Choice B is incorrect as it does not identify RTS signals.
Choice D is also incorrect. If lights comes on and goes off, then that means the device is not correctly connected.
8. Answer C is correct. The show standby command will display the virtual IP address, the virtual MAC address, and the IP address of the active and standby routers.
Choices A, B, and D are incorrect. There are no such commands.
9. Answer A is correct. Trunking is a way to carry traffic from several VLANs over a point-to-point link between the two devices. Two ways in which Ethernet trunking can be implemented are:
- ISL (Cisco proprietary protocol)
- 802.1Q (Institute of Electrical and Electronics Engineers (IEEE) standard)
The native VLAN is the VLAN to which the port will belong if that link becomes non-trunk.
10. Answer B is correct. In order for CGMP to operate correctly on a switch, the switch must have a network connection to a router running CGMP. A CGMP-capable IP multicast router detects all ICMP packets and informs the switch when specific hosts join or leave IP multicast groups.
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