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How does a DHCP server dynamically assign IP addresses to hosts?（）
A . Addresses are permanently assigned so that the host uses the same address at all times.
B . Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.
C . Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.
D . Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
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A MAC address flood attack is occurring on the LAN. During this attack， numerous frames areforwarded to a switch which causes the CAM table to fill to capacity. How does this action benefitthe attacker？（）
A . All traffic is tagged with a specific VLAN ID from the VLAN of the attacker and is now viewable
B . Clients will forward packets to the attacking device， which will in turn send them to the desireddestination but not before recording the traffic patterns
C . All traffic is redirected to the VLAN that the attacker used to flood the CAM table
D . All traffic is flooded out all ports and an attacker is able to capture all data
E . None of the other alternatives apply
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As an experienced technician, you are responsible for Technical Support. A customer calls to ask the best signal level and noise level for cell phone. How to respond?（）
A . -40dBm signal and -90dBm noise
B . -50dBm signal and -90dBm noise
C . -30dBm signal and -90dBm noise
D . -20dBm signal and -90dBm noise
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An administrator migrates from AIX 5.3 to AIX 6.1. Upon completion， a client questions why files are missing from /tmp. How should the administrator respond to the client？（）
A . Explain that the files never existed in the first place.
B . Explain that during a Migration install the /tmp filesystem is overwritten.
C . Explain that after a Migration install， all system filesystems will be empty.
D . Explain that /tmp is temporary storage and files are automatically removed every 30 days.
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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 vla
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The Company core switches use 802.1Q trunks to connect to each other. How does 802.1Q trunking keep track of multiple VLANs？ （）
A . It tags the data frame with VLAN information and recalculates the CRC value
B . It encapsulates the data frame with a new header and frame check sequence
C . It modifies the port index of a data frame to indicate the VLAN
D . It adds a new header containing the VLAN ID to the data frame
E . None of the other alternatives apply
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How is UPSR and BLSR traffic rerouted during a protection switch when a complete fiber cable cut occurs?（）
A . Traffic is switched from the first node receiving the AIS indication.
B . Traffic is switched from the far side of the failure, allowing handshaking to occur.
C . UPSR traffic is switched from the terminating node, BLSR traffic is rerouted from the originating node in the ring.
D . UPSR traffic is switched from the terminating node, circuit by circuit. BLSR traffic is rerouted from the last reachable node in the ring.
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A Cisco Catalyst switch can belong to how many VTP domains？ （）
A . 1
B . 2
C . 1 to 1，005
D . 1 to 4，096
E . no limit
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You need to configure a new Company switch to support DTP. Which DTP switchport mode parameter sets the switch port to actively send and respond to DTP negotiation frames？ （）
A . Access
B . No negotiate
C . Trunk
D . Dynamic desirable
E . Dynamic auto
F . None of the other alternatives apply
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Two Company switches are connected via a trunk using VTP. Which VTP information does a Catalyst switch advertise on its trunk ports when using VTP？（）
A . STP root status
B . VTP mode
C . Negotiation status
D . Management domain
E . Configuration revision number
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To initiate testing， which port does a Cisco IOS IP SLA source use to send a control message to an IP SLA responder？ （）
A . UDP port 2020
B . UDP port 1967
C . TCP port 2020
D . ICMP port 1967
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When NIC teaming is used ,how are loops avoided in a virtual switch?（）
A . By using active / passive teaming with spanning tree on the active link
B . By using active / passive teaming with only the active link in use
C . By using active / active teaming with VM utilizing both uplink port
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An administrator migrates from AIX 5.3 to AIX 6.1. Upon completion, a client questions why files are missing from /tmp. How should the administrator respond to the client?（）
A . Explain that the files never existed in the first place.
B . Explain that during a Migration install the /tmp filesystem is overwritten.
C . Explain that after a Migration install, all system filesystems will be empty.
D . Explain that /tmp is temporary storage and files are automatically removed every 30 days.
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A media failure has occurred. This has resulted in all the members of the next log group being rendered inaccessible to the log writer process （LGWR） at a log switch. How does this failure affect the operational database？（）
A . The database allows only queries； no other statements are allowed.
B . The database re-creates the missing redo log files automatically.
C . The database continues to function normally with the existing files.
D . The database returns an error and the database instance shuts down.
E . The user sessions that generate redo logs are terminated automatically.
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What does a Layer 2 switch use to decide where to forward a received frame?（）
A . source MAC address
B . source IP address
C . source switch port
D . destination IP address
E . destination port address
F . destination MAC addre
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When NIC teaming is used, how are Loops avoided in a virtual switch?（）
A . By using active / passive teaming with spanning tree on the active Iink
B . By using active / passive teaming with onIy the active Iink in use
C . By using active / activate teaming with VM utilizing both uplink port
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When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）
A . by snooping the CoS marking on the incoming frames
B . by using RTP hello messages between the switch port and the Cisco IP Phone
C . by using CDP
D . by using DHCP snooping
E . by snooping the incoming 802.1Q VLAN tag
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How does a switch respond when it receives a message?（）
A . It reads the Layer-5 information and sends the message directly to the intended computer.
B . It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.
C . It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.
D . It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.
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How does Kevin 1990 make a living?
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How does the wrong career lead to a midlife crisis?
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How many whales does Japan kill a year and what does it say is the purpose?
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What does Forrest respond to President Kennedy's question How do you feel to be all- American, sir?
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How much does a pedicure cost according to the passage?
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How much living space does a person need？ What hap...
How much living space does a person need？ What happens when his space requirements are not adequately met？ Sociologists and psychologists are conducting experiments on rats to try to determine the effect of overcrowded conditions on man. Recent studies have shown that the behavior. of rats is greatly affected by space. If rats have adequate living space, they eat well, sleep well, and reproduce well.
However, if their living conditions become too crowded, their behavior. patterns and even their health perceptibly change. They cannot sleep or eat well, and signs of fear and tension become obvious. The more crowded they are, the more they tend to bite each other and even kill each other. Thus for rats, population and violence are directly related. Is this a natural law for human society as well？ Is adequate space not only desirable, but also essential for human survival？
This passage is mainly about ______.
A.living space and behavior
B.population and living conditions
C.interesting experiments on rats
D.a natural law for human society
What is the purpose of the experiments described in the passage？A.To determine how much living space a rat needs.
B.To see what happens when rats live in a limited space.
C.To know the likely effects of inadequate living space on human beings.
D.To find out the relationship between population and living conditions.
How would rats behave when their living conditions become too crowded？A.They eat a lot and become friendly to others.
B.They sleep little and act quite peacefully.
C.They eat little but sleep soundly.
D.They become nervous and tend to be war-like.
The passage suggests that overcrowded conditions ______.A.are directly related with population
B.may cause an increase in violence
C.may lead to high birth rate
D.may bring about pollution problems
