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。
300-101試験合格はCCNA Routing and Switching 認定またはいずれかの CCIE 認定となりました。
PassexamのCCNP Routing and Switching認定
300-101問題集を使用すると、知識ゼロの初心者でも勉強せずに受験しても合格できます。
弊社のCCNP Routing and Switching認定300-101試験のテキストを繰り返し解き、正答率9割以上を目指しました。
弊社のCCNP Routing and Switching認定300-101試験資料に参考にして、頻出分野の知識から優先的に勉強することをお勧めします。
Implementing Cisco IP Routing （ROUTE 300-101） は、問題数 50 ～ 60 問、解答時間 120 分の試験です。Cisco CCNP Routing and Switching 認定と CCDP 認定を取得するには、この試験に合格する必要があります。
合格点：790点
問題数：54
出題形式：単一選択,複数選択,シミュレーション(コマンド入力),シミュレーション(GUIによる画面操作)
試験時間：120
300-101出題範囲：
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%
質問と回答を含む当社のCCNP Routing and Switching認定300-101トレーニング資料は、合格率は100％に達することができます。
受験者はピアソンVUE社にログインして、ウェッブより300-101（Implementing Cisco IP Routing）受験を予約します。
受験生はCCNP Routing and Switching認定300-101認定試験で高い点数を取得して、自分の構成ファイルは市場の需要と互換性があるように充分な準備をするのは必要です。
300-101問題と解答を暗記してから、きっと試験に合格することができます。
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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