11.6 Redundancy and High Availability

What is the purpose of using Ethernet bonding? (Select two.)

- Provides a failover solution for network adapters - Increases network performance

You are adding a new rack to your data center, which will house two new blade servers and a new switch. The new servers will be used for file storage and a database server. The only space you have available in the data center is on the opposite side of the room from your existing rack, which already houses several servers, a switch, and a router. You plan to configure a trunk port on each switch and connect them with a crossover UTP plenum cable that will run through the suspended tile ceiling in the data center. To provide power for the new devices, you had an electrician install several new 20-amp wall outlets near the new rack. Each device on the rack will be plugged directly into one of these new wall outlets. What is wrong with this configuration? (Select two.)

- You should implement a UPS between the wall outlet and the network devices. - You should implement redundant power supplies for the network devices.

You manage your company's website, which uses a cluster of two servers with a single shared storage device. The shared storage device uses a RAID 1 configuration. Each server has a single connection to the shared storage and a single connection to your ISP. You want to provide redundancy so that a failure on a single component doesn't cause the website to become unavailable. What should you add to your configuration to accomplish this? Connect one server to the internet through a different ISP. On each server, add a second network connection to the internet. On each server, add a second network connection to connect the server to the shared storage device.

Connect one server to the internet through a different ISP.

A web server on your network hosts your company's public website. You want to make sure that a NIC failure on the server does not prevent the website from being accessible on the internet. Which solution should you implement? Traffic shaping Ethernet bonding QoS

Ethernet bonding

Which of the following devices accepts incoming client requests and distributes those requests to specific servers? Caching engine CSU/DSU Load balancer

Load balancer

You have purchased a solar backup power device to provide temporary electrical power to critical systems in your data center should the power provided by the electrical utility company go out. The solar panel array captures sunlight, converts it into direct current (DC), and stores it in large batteries. The power supplies on the servers, switches, and routers in your data center require alternating current (AC) to operate. Which electrical device should you implement to convert the DC power stored in the batteries into AC power that can be used in the data center? Inverter Transistor Transformer

Inverter

You are adding a new rack to your data center, which will house two new blade servers and a new switch. The new servers will be used for virtualization. The only space you have available in the data center is on the opposite side of the room from your existing rack, which already houses several servers, a switch, and a router. You plan to configure a trunk port on each switch and connect them with a straight-through UTP cable that will run across the floor of the data center. To protect equipment from power failures, you also plan to install a UPS on the rack along with redundant power supplies for the server. Will this configuration work? No, you should not run a cable across the data center floor. Yes, this configuration complies with data center best practices. No, you must implement the UPS and power supplies on the rack externally.

No, you should not run a cable across the data center floor.

In addition to performing regular backups, what must you do to protect your system from data loss? Regularly test restoration procedures. Write-protect all backup media. Store the backup media in an on-site fireproof vault.

Regularly test restoration procedures.

Which of the following is the least effective power loss protection for computer systems? Surge protector Uninterruptible power supply Backup power generator

Surge protector

Why should you store backup media off site? To reduce the possibility of theft To make the restoration process more efficient To prevent the same disaster from affecting both the network and the backup media

To prevent the same disaster from affecting both the network and the backup media