300-101 ROUTEは中級者向け試験です。
知識ゼロの初心者でも300-101勉強せずに受験しても合格できる。
Passexamの300-101問題集を繰り返し解き、正答率9割以上を目指しました。
「Implementing Cisco IP Routing」 (ROUTE) 300-101は試験時間：120分、試験数：45-65問のCCNP Routing and Switching認定資格に関連する試験です。
CCNP Routing and Switching認定300-101試験は、ルーティングに関する知識とスキルを証明する試験です。
300-101試験の合格者は、高度な IP アドレッシングとルーティングを使用して、拡張性とセキュリティに優れたシスコ ルータを LAN、WAN、IPv6 に接続する能力があると認定されます。 この試験の内容には、ブランチ オフィスとモバイル ワーカーに対応できる、高セキュリティ ルーティング ソリューションの設定も含まれています。
300-101試験の準備をするために、すべての問題を解決するのに役立ちます。
300-101認定試験の目標が変更されば、Passexamが提供した300-101勉強資料も変化に追従して内容を変えます。
受験者は弊社のCCNP Routing and Switching認定300-101受験対策を使用すれば、本場の試験で実験を受けされて、合格率は97％以上です。
CCNP Routing and Switching認定300-101練習問題集を使用すると、常に高いレベルに到達するための独自の知識を向上させています。
CCNP Routing and Switching認定300-101出題内容：
1.0 ネットワークの基本事項 10%
2.0 レイヤ 2 テクノロジー 10%
3.0 レイヤ 3 テクノロジー 40%
4.0 VPN テクノロジー 10%
5.0 インフラストラクチャのセキュリティ 10%
6.0 インフラストラクチャ サービス 20%
最新の品質が高いCCNP Routing and Switching認定300-101学習資料は有名な問題集としては、的中率も高いテスト問題を提供し、300-101試験合格率を向上させることが保障いたします。
短時間の勉強で試験に合格できる最新の300-101試験材料が登場しました。
1.A network engineer notices that transmission rates of senders of TCP traffic sharply increase and
decrease simultaneously during periods of congestion.
Which condition causes this?
A. global synchronization
B. tail drop
C. random early detection
D. queue management algorithm
Answer: A
Explanation:
TCP global synchronization in computer networks can happen to TCP/IP flows during periods of
congestion because each sender will reduce their transmission rate at the same time when packet loss
occurs. Routers on the Internet normally have packet queues, to allow them to hold packets when the
network is busy, rather than discarding them.
Because routers have limited resources, the size of these queues is also limited. The simplest technique
to limit queue size is known as tail drop. The queue is allowed to fill to its maximum size, and then any
new packets are simply discarded, until there is space in the queue again. This causes problems when
used on TCP/IP routers handling multiple TCP streams, especially when bursty traffic is present. While
the network is stable, the queue is constantly full, and there are no problems except that the full queue
results in high latency. However, the introduction of a sudden burst of traffic may cause large numbers of
established, steady streams to lose packets simultaneously.
Reference: http://en.wikipedia.org/wiki/TCP_global_synchronization
2.Which three problems result from application mixing of UDP and TCP streams within a network with no
QoS? (Choose three.)
A. starvation
B. jitter
C. latency
D. windowing
E. lower throughput
Answer: A,C,E
Explanation:
It is a general best practice not to mix TCP-based traffic with UDP-based traffic (especially streaming
video) within a single service provider class due to the behaviors of these protocols during periods of
congestion. Specifically, TCP transmitters will throttle-back flows when drops have been detected.
Although some UDP applications have application-level windowing, flow control, and retransmission
capabilities, most UDP transmitters are completely oblivious to drops and thus never lower transmission
rates due to dropping. When TCP flows are combined with UDP flows in a single service provider class
and the class experiences congestion, then TCP flows will continually lower their rates, potentially giving
up their bandwidth to drop-oblivious UDP flows. This effect is called TCP-starvation/UDP-dominance. This
can increase latency and lower the overall throughput. TCP-starvation/UDP-dominance likely occurs if
(TCP-based) mission-critical data is assigned to the same service provider class as (UDP-based)
streaming video and the class experiences sustained congestion. Even if WRED is enabled on the
service provider class, the same behavior would be observed, as WRED (for the most part) only affects
TCP-based flows.
Granted, it is not always possible to separate TCP-based flows from UDP-based flows, but it is beneficial
to be aware of this behavior when making such application-mixing decisions.
Reference: http://www.cisco.com/warp/public/cc/so/neso/vpn/vpnsp/spqsd_wp.htm
3.Which method allows IPv4 and IPv6 to work together without requiring both to be used for a single
connection during the migration process?
A. dual-stack method
B. 6to4 tunneling
C. GRE tunneling
D. NAT-PT
Answer: A
Explanation:
Dual stack means that devices are able to run IPv4 and IPv6 in parallel. It allows hosts to simultaneously
reach IPv4 and IPv6 content, so it offers a very flexible coexistence strategy. For sessions that support
IPv6, IPv6 is used on a dual stack endpoint. If both endpoints support Ipv4 only, then IPv4 is used.
Benefits:
? Native dual stack does not require any tunneling mechanisms on internal networks
? Both IPv4 and IPv6 run independent of each other
? Dual stack supports gradual migration of endpoints, networks, and applications.
Reference: http://www.cisco.com/web/strategy/docs/gov/IPV6at_a_glance_c45-625859.pdf
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