Question 1
Question
Which of the following statements describes part of the process of how a switch decides to forward a frame destined for a known unicast MAC address?
Answer
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It compares the unicast destination address to the bridging, or MAC address, table.
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It compares the unicast source address to the bridging, or MAC address, table.
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It forwards the frame out all interfaces in the same VLAN except for the incoming interface.
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It compares the destination IP address to the destination MAC address.
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It compares the frame’s incoming interface to the source MAC entry in the MAC address table.
Question 2
Question
Which of the following statements describes part of the process of how a LAN switch decides to forward a frame destined for a broadcast MAC address?
Answer
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It compares the unicast destination address to the bridging, or MAC address, table.
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It compares the unicast source address to the bridging, or MAC address, table.
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It forwards the frame out all interfaces in the same VLAN except for the incoming interface.
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It compares the destination IP address to the destination MAC address.
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It compares the frame’s incoming interface to the source MAC entry in the MAC address table.
Question 3
Question
Which of the following statements best describes what a switch does with a frame destined for an unknown unicast address?
Answer
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It forwards out all interfaces in the same VLAN except for the incoming interface.
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It forwards the frame out the one interface identified by the matching entry in the MAC address table.
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It compares the destination IP address to the destination MAC address.
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It compares the frame’s incoming interface to the source MAC entry in the MAC address table.
Question 4
Question
Which of the following comparisons does a switch make when deciding whether a new MAC address should be added to its MAC address table?
Answer
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It compares the unicast destination address to the bridging, or MAC address, table.
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It compares the unicast source address to the bridging, or MAC address, table.
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It compares the VLAN ID to the bridging, or MAC address, table.
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It compares the destination IP address’s ARP cache entry to the bridging, or MAC address, table.
Question 5
Question
PC1, with MAC address 1111.1111.1111, is connected to Switch SW1’s Fa0/1 interface. PC2, with MAC address 2222.2222.2222, is connected to SW1’s Fa0/2 interface. PC3, with MAC address 3333.3333.3333, connects to SW1’s Fa0/3 interface. The switch begins with no dynamically learned MAC addresses, followed by PC1 sending a frame with a destination address of 2222.2222.2222. If the next frame to reach the switch is a frame sent by PC3, destined for PC2’s MAC address of 2222.2222.2222, which of the following are true? (Choose two answers.)
Answer
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The switch forwards the frame out interface Fa0/1.
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The switch forwards the frame out interface Fa0/2.
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The switch forwards the frame out interface Fa0/3.
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The switch discards (filters) the frame.
Question 6
Question
Which of the following devices would be in the same collision domain as PC1?
Answer
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PC2, which is separated from PC1 by an Ethernet hub
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PC3, which is separated from PC1 by a transparent bridge
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PC4, which is separated from PC1 by an Ethernet switch
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PC5, which is separated from PC1 by a router
Question 7
Question
Which of the following devices would be in the same broadcast domain as PC1? (Choose three answers.)
Answer
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PC2, which is separated from PC1 by an Ethernet hub
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PC3, which is separated from PC1 by a transparent bridge
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PC4, which is separated from PC1 by an Ethernet switch
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PC5, which is separated from PC1 by a router
Question 8
Question
Which of the following Ethernet standards support a maximum cable length of longer than 100 meters? (Choose two answers.)
Answer
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100BASE-T
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1000BASE-LX
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1000BASE-T
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100BASE-FX
Question 9
Question
A Cisco LAN switch connects to three PCs (PC1, PC2, and PC3), each directly using a cable that supports Ethernet UTP speeds up through 1000 Mbps (1 Gbps). PC1 uses a NIC that supports only 10BASE-T, while PC2 has a 10/100 NIC, and PC3 has a 10/100/1000 NIC. Assuming that the PCs and switch use IEEE autonegotiation, which PCs will use half-duplex?