わくわくIT資格勉強記

• SR-12
  • 10 slot I/Oモジュールと冗長化された共通部
    • 2つの200Gbps SF/CPMで最大400Gbps full-duplex
    • 2つの400Gbps SF/CPMで最大800Gbps full-duplex
    • 1 slot I/Oモジュールで最大40Gbps full-duplex
    • 10 slot I/Oモジュールで最大400Gbps full-duplex
  • 物理IFはGigabit Ethernet, ATM, SONET, DS3 channelized等
• SR-7
  • 5 slot I/Oモジュールと冗長化された共通部
• SR-1
  • シャーシに統合された固定構成の管理モジュールと
  • スイッチファブリック及び
  • I/Oモジュール 1 slot（2 slot MDA）

When two Alcatel-Lucent 7750 SR SF/CPMs are installed, the traffic is load-shared across both of the switch fablics.

SF/CPMを2つ挿入した場合、スイッチファブリックへトラフィックを負荷分散する。

• ルーティングプロトコル
  • OSPF, IS-IS, BGP, RIP
• マルチキャスト
• BGPアドレスファミリー(mpBGP)
• IPv6
• MPLS, LDP及びそれらが提供するサービス
• VPN
  • VPWS(Virtual Private Wire Service)
  • VPLS(Virtual Private LAN Service)
  • VPRN(Virtual Private Routed Service)
• ノンストップルーティング(NSR)
• グレースフルリスタート(GR) Helper Mode

IOM, MDA, SF/CPMなどパッケージ名称は同じだがSRとは互換性がない。
metro Ethernetを主なサービスとしている。
BGPをサポートしていないためMPLS/BGP VPNはサポートしてない。

• ESS-12
  • SR-12 like
• ESS-7
  • SR-7 like
• ESS-6
  • 4 slot I/Oモジュールと冗長化された共通部
• ESS-1
  • SR-1 like

物理IFはEthernet, SONET

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Which of the following is not a product in the Aclatel-Lucent 7750 SR/7450 ESS family?
　A. SR-12
　B. ESS-7
　C. SR-6
　D. ESS-1

This is not a product in the SR line; the SR line contains SR-12, SR-7, and SR-1.

Which of the following statements in false regarding the Aclatel-Lucent 7450 ESS series?
　A. It supports multiple chassis types.
　B. It supports OSPF, IS-IS, RIP, and BGP.
　C. It is used primarily for Ehternet aggregation.
　D. It can be managed via console port or a dedicated Ethernet port on the SF/CPM.

The Alcatal-Lucent 7450 ESS is designed primarily as an Ethernet aggregation point and so it does not support provider protocol like BGP.

Which of the following descriptions is correct?
　A. bof.cfg -- 7750/7450 configuration file
　B. cpm.tim -- IOM image file
　C. config.cfg -- Back-up configuration file
　D. boot.ldr -- Bootstrap image file

This is the only correct pairing.

Which of the following commands is not correctly described?
　A. shutdown -- This command is used to disable an interface or protocol.
　B. exit all -- Logs out of the Aclatel-Lucent 7750 SR/7450 ESS device.
　C. ? -- Lists all commands in the current context.
　D. [TAB] -- This command is used for assistance with command completion.

The exit all command takes you to the root context but does not log you out.

Which of the following is not a stream type?
　A. Audit
　B. Change
　C. Main
　D. Security

This is not a valid log stream type.

Which of the following descriptions of hardware for the Aclatel-Lucent 7750 SR/7450 ESS is correct?
　A. IOMs plug into MDAs.
　B. MDAs plug into SFPs.
　C. SF/CPMs plug into IOMs.
　D. IOMs plug int chassis.

An IOM card supports two MDAs that provide the physical ports for a chassis.

What file contains the system bootstrap image?
　A. boot.cfg
　B. image.ldr
　C. boot.ldr
　D. bof.cfg

This is the file that contains the bootstrap image, and it is the first file that is read upon system startup.

The SF/CPM card has its own Ethernet interface for out-of-band management.
This interface has its own IP address and default route.
Where is this information stored?
　A. boot.ldr
　B. bof.cfg
　C. config.cfg
　D. cpm.tim

The bof.cfg stores the boot file configuration parameters such as the Ethernet management IP, the location of the config file, and the system image file.

Which of the following correctly lists the order in which file are read by the Aclatel-Lucent 7750 SR/7450 ESS upon bootup?
　A. boot.ldr, bof.cfg, system image, config.cfg
　B. system image, boot.ldr, config.cfg, bof.cfg
　C. boot.ldr, system image, bof.cfg, config.cfg
　D. boot.ldr, bof.cfg, config.cfg, system image

This is the correct order.

During the boot process, an Aclatel-Lucent 7750 SR/7450 ESS checks to see if persistence is enabled. What is the purpose of persistence?
　A. To ensure that the system saves routing table information when it reboots
　B. To ensure that changes to the bof.cfg are saved
　C. To ensure synchronization with the 5620 SAM
　D. To ensure that config changes are stored in the config.cfg

The persistence option is only needed if the 5620 SAM is used to manage your Alcatal-Lucent device.

What command would you use to enable an interface the first time you initialized an Aclatel-Lucent 7750 SR/7450 ESS?
　A. enable
　B. no shutdown
　C. interface enable
　D. interface on

By default, all the ports and cards on an Alcatal-Lucent 7750 SR/7450 ESS are down and need to have the no shutdown command used to enable them.

Which of the following is the correct provisioning order you should follow when configuring an Aclatel-Lucent 7750 SR/7450 ESS for the first time?
　A. IOM, port, MDA
　B. Port, MDA, IOM
　C. IOM, MDA, port
　D. MDA, port, IOM

This is the correct provisioning order.

Which of the following is false regarding the logging mechanisms in the Aclatel-Lucent 7750 SR/7450 ESS?
　A. Log IDs 99 and 100 are reserved for system usage.
　B. You must configure at least one input stream for a log ID.
　C. You must configure a filter for each log ID.
　D. You must configure the destination for the events from the log ID.

Configuration of a filter for a log-id is optional.

What command would you use to display the configuration of your Aclatel-Lucent 7750 SR/7450 ESS?
　A. show config
　B. admin display-config
　C. display config
　D. show admin config

This is used to show the configuration of your Alcatal-Lucent device.

Which of the following values is not stored in the bof.cfg?
　A. The location of the primary boot image
　B. The list of IOM cards in the chassis
　C. The persist value
　D. The location of the primary config file

This value is not stored in the bof.cfg