きみはCiscoの642-270認定テストに合格するためにたくさんのルートを選択肢があります。JPexamは君のために良い訓練ツールを提供し、君のCisco認証試に高品質の参考資料を提供しいたします。あなたの全部な需要を満たすためにいつも頑張ります。
Ciscoの認証資格は最近ますます人気になっていますね。国際的に認可された資格として、Ciscoの認定試験を受ける人も多くなっています。その中で、642-813認定試験は最も重要な一つです。では、この試験に合格するためにどのように試験の準備をしているのですか。がむしゃらに試験に関連する知識を勉強しているのですか。それとも、効率が良い試験642-813参考書を使っているのですか。
人々はそれぞれ自分の人生計画があります。違った選択をしたら違った結果を取得しますから、選択は非常に重要なことです。JPexamのCiscoの642-647試験トレーニング資料はIT職員が自分の高い目標を達成することを助けます。この資料は問題と解答に含まれていて、実際の試験問題と殆ど同じで、最高のトレーニング資料とみなすことができます。
最近、Ciscoの認定試験はますます人気があるようになっています。それと同時に、Ciscoの認証資格ももっと重要になっています。IT業界では広く認可されている試験として、642-270認定試験はCiscoの中の最も重要な試験の一つです。この試験の認証資格を取ったら、あなたは多くの利益を得ることができます。あなたもこの試験を受ける予定があれば、JPexamの642-270問題集は試験に準備するときに欠くことができないツールです。この問題集は642-270認定試験に関連する最も優秀な参考書ですから。
試験番号：642-270問題集試験科目：Implementing Cisco TelePresence Video Networking Solutions Exam
最近更新時間：2014-06-19
問題と解答：全57問 642-270 資格問題集
100％の返金保証。1年間の無料アップデート。
試験番号：642-813問題集試験科目：Implementing Cisco IP Switched Networks
最近更新時間：2014-06-19
問題と解答：全190問 642-813 資格問題集
100％の返金保証。1年間の無料アップデート。
試験番号：642-647問題集試験科目：Deploying Cisco ASA VPN Solutions (VPN v1.0)
最近更新時間：2014-06-19
問題と解答：全80問 642-647 参考書勉強
100％の返金保証。1年間の無料アップデート。
JPexamの専門家チームが君の需要を満たすために自分の経験と知識を利用してCiscoの642-813認定試験対策模擬テスト問題集が研究しました。模擬テスト問題集と真実の試験問題がよく似ています。一目でわかる最新の出題傾向でわかりやすい解説と充実の補充問題があります。
購入前にお試し,私たちの試験の質問と回答のいずれかの無料サンプルをダウンロード：http://www.jpexam.com/642-813_exam.html
NO.1 Refer to the exhibit.
What information can be derived from the output?
A. Interfaces FastEthernet3/1 and FastEthernet3/2 are connected to devices that are sending BPDUs
with a superior root bridge parameter and no traffic is forwarded across the ports. After the sending of
BPDUs has stopped, the interfaces must be shut down administratively, and brought back up, to resume
normal operation.
B. Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a
superior root bridge parameter, but traffic is still forwarded across the ports.
C. Devices connected to interfaces FastEthernet3/1 and FastEthernet3/2 are sending BPDUs with a
superior root bridge parameter and no traffic is forwarded across the ports. After the inaccurate BPDUs
have been stopped, the interfaces automatically recover and resume normal operation.
D. Interfaces FastEthernet3/1 and FastEthernet3/2 are candidates for becoming the STP root port, but
neither can realize that role until BPDUs with a superior root bridge parameter are no longer received on
at least one of the interfaces.
Answer: C
Cisco 642-813教育 642-813ふりーく 642-813勉強法 642-813内容 642-813問題集
NO.2 Which description correctly describes a MAC address flooding attack?
A. The attacking device crafts ARP replies intended for valid hosts. The MAC address of the attacking
device then becomes the destination address found in the Layer 2 frames sent by the valid network
device.
B. The attacking device crafts ARP replies intended for valid hosts. The MAC address of the attacking
device then becomes the source address found in the Layer 2 frames sent by the valid network device.
C. The attacking device spoofs a destination MAC address of a valid host currently in the CAM table. The
switch then forwards frames destined for the valid host to the attacking device.
D. The attacking device spoofs a source MAC address of a valid host currently in the CAM table.
The switch then forwards frames destined for the valid host to the attacking device.
E. Frames with unique, invalid destination MAC addresses flood the switch and exhaust CAM table space.
The result is that new entries cannot be inserted because of the exhausted CAM table space, and traffic is
subsequently flooded out all ports.
F. Frames with unique, invalid source MAC addresses flood the switch and exhaust CAM table space.
The result is that new entries cannot be inserted because of the exhausted CAM table space, and traffic is
subsequently flooded out all ports.
Answer: F
Cisco 642-813問題 642-813テスト 642-813費用
NO.3 Which statement is true about RSTP topology changes?
A. Any change in the state of the port generates a TC BPDU.
B. Only nonedge ports moving to the forwarding state generate a TC BPDU.
C. If either an edge port or a nonedge port moves to a block state, then a TC BPDU is generated.
D. Only edge ports moving to the blocking state generate a TC BPDU.
E. Any loss of connectivity generates a TC BPDU.
Answer: B
Cisco参考書 642-813教本 642-813 642-813ふりーく 642-813教材
NO.4 Refer to the exhibit.
Assume that Switch_A is active for the standby group and the standby device has only the default HSRP
configuration. Which statement is true?
A. If port Fa1/1 on Switch_A goes down, the standby device takes over as active.
B. If the current standby device had the higher priority value, it would take over the role of active for the
HSRP group.
C. If port Fa1/1 on Switch_A goes down, the new priority value for the switch would be 190.
D. If Switch_A had the highest priority number, it would not take over as active router.
Answer: C
Cisco虎の巻 642-813種類 642-813短期 642-813認定試験
NO.5 When an attacker is using switch spoofing to perform VLAN hopping, how is the attacker able to gather
information?
A. The attacking station uses DTP to negotiate trunking with a switch port and captures all traffic that is
allowed on the trunk.
B. The attacking station tags itself with all usable VLANs to capture data that is passed through the switch,
regardless of the VLAN to which the data belongs.
C. The attacking station generates frames with two 802.1Q headers to cause the switch to forward the
frames to a VLAN that would be inaccessible to the attacker through legitimate means.
D. The attacking station uses VTP to collect VLAN information that is sent out and then tags itself with the
domain information to capture the data.
Answer: A
Cisco教本 642-813 PDF 642-813番号
NO.6 Refer to the exhibit.
Dynamic ARP Inspection is enabled only on switch SW_A. Host_A and Host_B acquire their IP addresses
from the DHCP server connected to switch SW_A. What would the outcome be if Host_B initiated an ARP
spoof attack toward Host_A ?
A. The spoof packets are inspected at the ingress port of switch SW_A and are permitted.
B. The spoof packets are inspected at the ingress port of switch SW_A and are dropped.
C. The spoof packets are not inspected at the ingress port of switch SW_A and are permitted.
D. The spoof packets are not inspected at the ingress port of switch SW_A and are dropped.
Answer: C
Cisco番号 642-813 642-813
NO.7 Which statement is true about Layer 2 security threats?
A. MAC spoofing, in conjunction with ARP snooping, is the most effective counter-measure against
reconnaissance attacks that use Dynamic ARP Inspection to determine vulnerable attack points.
B. DHCP snooping sends unauthorized replies to DHCP queries.
C. ARP spoofing can be used to redirect traffic to counter Dynamic ARP Inspection.
D. Dynamic ARP Inspection in conjunction with ARP spoofing can be used to counter DHCP snooping
attacks.
E. MAC spoofing attacks allow an attacking device to receive frames intended for a different network host.
F. Port scanners are the most effective defense against Dynamic ARP Inspection.
Answer: E
Cisco取得 642-813問題 642-813練習問題 642-813テスト
NO.8 Refer to the exhibit.
Which four statements about this GLBP topology are true? (Choose four.)
A. Router A is responsible for answering ARP requests sent to the virtual IP address.
B. If router A becomes unavailable, router B forwards packets sent to the virtual MAC address of router A.
C. If another router is added to this GLBP group, there would be two backup AVGs.
D. Router B is in GLBP listen state.
E. Router A alternately responds to ARP requests with different virtual MAC addresses.
F. Router B transitions from blocking state to forwarding state when it becomes the AVG.
Answer: ABDE
Cisco認定 642-813問題集 642-813教科書
没有评论:
发表评论