ムラゴン ホーム
100-105テストに無事合格したかったら、ktest のCCENT認定100-105問題集を使用ほうがいいと思います。
テキストを読破後、弊社のCCENT認定100-105勉強資料に取り組み、試験に合格できます。
弊社のCCENT認定100-105参考書がカバーする範囲から出題されます。
100-105試験概要：
100-105試験では、ネットワークの基礎、LAN スイッチング テクノロジー、ルーティング テクノロジー、インフラストラクチャ サービス、インフラストラクチャのメンテナンスに関する受験者の知識とスキルが問われます。
ktestの100-105試験材料だけ完璧
ktestのCCENT認定100-105試験材料だけ完璧に学習しても試験合格は高いです。
最新のCCENT認定100-105学習問題集に手をつけたときの正答率は9割くらいです。
9割くらい出題内容はktestのCCENT認定100-105問題集の内容と完全一致です。
ktestのCCENT認定100-105勉強資料は常に更新し、変更されている、最も高い訓練の経験を持っています。
100-105試験問題集
Question No : 1
How does a switch differ from a hub?
A.A switch does not induce any latency into the frame transfer time.
B.A switch tracks MAC addresses of directly-connected devices.
C.A switch operates at a lower, more efficient layer of the OSI model.
D.A switch decreases the number of broadcast domains.
E.A switch decreases the number of collision domains.
正解: B
Explanation:
Some of the features and functions of a switch include:
A switch is essentially a fast, multi-port bridge, which can contain dozens of ports. Rather than creating two collision domains, each port creates its own collision domain. In a network of twenty nodes, twenty collision domains exist if each node is plugged into its own switch port. If an uplink port is included, one switch creates twenty-one single-node collision domains. A switch dynamically builds and maintains a Content-Addressable Memory (CAM) table, holding all of the necessary MAC information for each port. For a detailed description of how switches operate, and their key differences to hubs, see the reference link below. http://www.cisco.com/warp/public/473/lan-switch-cisco.shtml
100-105参考書
Question No : 2
What must occur before a workstation can exchange HTTP packets with a web server?
A.A UDP connection must be established between the workstation and its default gateway.
B.A UDP connection must be established between the workstation and the web server.
C.A TCP connection must be established between the workstation and its default gateway.
D.A TCP connection must be established between the workstation and the web server.
E.An ICMP connection must be established between the workstation and its default gateway.
F.An ICMP connection must be established between the workstation and the web server.
正解: D
Explanation:
HTTP uses TCP port 80. http://pentestlab.wordpress.com/2012/03/05/common-tcpip-ports/
100-105対策書
Question No : 3
How does TCP differ from UDP? (Choose two.)
A.TCP provides best effort delivery.
B.TCP provides synchronized communication.
C.TCP segments are essentially datagrams.
D.TCP provides sequence numbering of packets.
E.TCP uses broadcast delivery.
Question No : 4
A workstation has just resolved a browser URL to the IP address of a server.
What protocol will the workstation now use to determine the destination MAC address to be placed into frames directed toward the server?
A.HTTP
B.DNS
C.DHCP
D.RARP
E.ARP
正解: E
Question No : 5
The network manager has requested a 300-workstation expansion of the network.
The workstations are to be installed in a single broadcast domain, but each workstation must have its own collision domain. The expansion is to be as cost-effective as possible while still meeting the requirements.
Which three items will adequately fulfill the request? (Choose three).
A.one IP subnet with a mask of 255.255.254.0
B.two IP subnets with a mask of 255.255.255.0
C.seven 48-port hubs
D.seven 48-port switches
E.one router interface
F.seven router interfaces
正解: ADE
Explanation:
of 255.255.254.0 can absorb 510 hosts being 23 bits mask and also 7*48 port switches can handle this much hosts and router interface is required to be minimum to avoid unnecessary wastage hence the answers.
Question No : 6
What are two common TCP applications? (Choose two.)
A.TFTP
B.SMTP
C.SNMP
D.FTP
E.DNS
正解: ABD
Explanation:
SMTP uses TCP port 25, while FTP uses TCP ports 20 and 21. http://pentestlab.wordpress.com/2012/03/05/common-tcpip-ports/
Question No : 7
Which method does a connected trunk port use to tag VLAN traffic?
A.IEEE 802 1w
B.IEEE 802 1D
C.IEEE 802 1Q
D.IEEE 802 1p
正解: C
Explanation:
IEEE 802.1Q is the networking standard that supports virtual LANs (VLANs) on an Ethernet network. When a frame enters the VLAN-aware portion of the network (a trunk link, for example), a VLAN ID tag is added to represent the VLAN membership of that frame. The picture below shows how VLAN tag is added and removed while going through the network.
http://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
Question No : 8
Which two statements describe the operation of the CSMA/CD access method? (Choose two.)
A.In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
B.In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
C.The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method.
D.After a collision, the station that detected the collision has first priority to resend the lost data.
E.After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
F.After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.
正解: ABE
Explanation:
Ethernet networking uses Carrier Sense Multiple Access with Collision Detect (CSMA/CD), a protocol that helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium. CSMA/CD was created to overcome the problem of those collisions that occur when packets are transmitted simultaneously from different nodes. And trust me, good collision management is crucial, because when a node transmits in a CSMA/CD network, all the other nodes on the network receive and examine that transmission. Only bridges and routers can effectively prevent a transmission from propagating throughout the entire network! So, how does the CSMA/CD protocol work? Like this: when a host wants to transmit over the network, it first checks for the presence of a digital signal on the wire. If all is clear (no other host is transmitting), the host will then proceed with its transmission. But it doesn't stop there. The transmitting host constantly monitors the wire to make sure no other hosts begin transmitting. If the host detects another signal on the wire, it sends out an extended jam signal that causes all nodes on the segment to stop sending data (think, busy signal). The nodes respond to that jam signal by waiting a while before attempting to transmit again. Backoff algorithms determine when the colliding stations can retransmit. If collisions keep occurring after 15 tries, the nodes attempting to transmit will then time out.
