You want to upgrade the Ezonexam

相关试题

In which Spanning-Tree states does a switch port learn MAC addresses? (Select two)
- A．Blocking
- B．Listening
- C．Forwarding
- D．Learning
- E．Relaying
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Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)
- A．Addresses chosen by Ezonexam.com to communicate with the Internet.
- B．Addresses that cannot be routed through the public Internet.
- C．Addresses that can be routed through the public Internet.
- D．A scheme to conserve public addresses.
- E．Addresses licensed to enterprise or ISPs by an Internet registry organization.
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By default, which of the following factors determines the spanning-tree path cost?
- A．It is the individual link cost based on latency
- B．It is the sum of the costs based on bandwidth
- C．It is the total hop count
- D．It is dynamically determined based on load
- E．None of the above
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A new Ezonexam switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?
- A．All defined VLANs are allowed on the trunk by default.
- B．Each VLAN, or VLAN range, that is specified with the switchport mode command.
- C．Each VLAN, or VLAN range, that is specified with the vtp domain command.
- D．Each VLAN, or VLAN range, that is specified with the vlan database command.
- E．None of the above
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While troubleshooting a connectivity issue from a PC you obtain the following information:
Local PC IP address: 190.0.3.35/24
Default Gateway: 190.0.3.1
Remote Server: 190.0.5.250/24
You then conduct the following tests from the local PC:
Ping 127.0.0.1 - Unsuccessful
Ping 190.0.3.35 - Successful
Ping 190.0.3.1 - Unsuccessful
Ping 190.0.5.250 – Unsuccessful
What is the underlying cause of this problem?
- A．TCP/IP not correctly installed
- B．Local physical layer problem
- C．NIC not functioning
- D．Remote physical layer problem
- E．None of the above
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A receiving host has failed to receive all of the segments that it should acknowledge.
What can the host do to improve the reliability of this communication session?
- A．Start a new session using UDP
- B．Obtain a new IP address from the DHCP server
- C．Use a different source port for the session
- D．Decrease the sequence number
- E．Decrease the window size
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You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?
- A．Full-duplex Ethernet consists of a shared cable segment. Half-duplex provides a point-to-point link
- B．Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive
- C．Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth
- D．Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex Ethernet uses a jam signal
- E．None of the above
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After working all night and successfully configuring a Cisco router for the Ezonexam network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?
- A．Hardware failure in NVRAM prevents the router from loading the config
- B．Startup-config in flash is corrupt and cannot be analyzed
- C．Router configuration-register set to bypass startup configuration
- D．Startup-config in NVRAM is corrupt and cannot be analyzed
- E．None of the above
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When files are transferred between a host and an FTP server, the data is divided into smaller pieces for transmission. As these pieces arrive at the destination host, they must be reassembled to reconstruct the original file. What provides for the reassembly of these pieces into the correct order?
- A．The sequence number in the TCP header
- B．The Start Frame. Delimiter in the 802.3 Preamble
- C．The TTL in the IP header
- D．The acknowledgement number in the segment header
- E．The frame. check sequence in the Ethernet frame. trailer
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A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.
In which OSI layer is the problem most likely occurring?
- A．Physical
- B．Data link
- C．Network layer
- D．Transport layer
- E．Application layer
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You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?