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32 Cards in this Set
- Front
- Back
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What is RAID?
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Redundant Array Independent Disk/Drives
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How does RAID Level 1 manage data?
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Uses disk mirroring, a ->a1, b->b1.
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How does RAID Level 5 manage data?
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Works across 3 or more drives using parity and dividing backup storage on each drive.
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Describe 3 server form factors.
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Blade, Rack, Tower.
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Name 3 roles or jobs that servers can perform.
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Email, Storage, Web, Applications, Proxy, Database, Chat.
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Whay would a server need ECC memory solutions?
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Tests/verifies accuracy of date at the bit level. Error correcting code.
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Name 5 differences between a server and a desktop.
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1.Desktop- sound, Server -no sound. 2.Desktop only 1, maybe 2 processors, Server- many processors. 3.Dktp- less memory, Srvr big memory, 4.Dktp- runs less time, Srvr- 24/7/365. 5. Desktop- ATA only, Server- SCSI.
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What are questions you could ask a client who has a server need?
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What are you using it for? What are your space requirements? Replacement or addition? How many users? What level of redundancy? Gov't compliance requirements?
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What are the following terms acronym/definition: DAS, NAS, SAN.
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DAS- Direct Attach Storage- method for conn data strg dev to computers directly. NAS- Network Attached Storage- hard disk storage dev that is set up w/ its own network address rather than being attached dir to comp serving apps or files to a network's users. SAN- Storage Area Network-dedicated network that is separate from LANs and WANs. It generally serves to interconnect the storage-related resources that are connected to one or more servers.
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Name the 2 major UPS manufacturers that work with Insight.
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A.P.C. and Tripplite.
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What's the diff between a UPS and a surge protector?
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UPS- uniterruptable Power Supply continues to provide power after a primary supply outage. Surge Protector- device that protects computers from excessive voltage and and current in the power line.
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Define the following power terms: Sag/brownout, Power surge, Blackout or power failure, Spike.
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Sag/brownout- shor period of low voltage often caused by an unusually heavy demand for power. Surge- sudden increase in voltage. Blackout- total power failure. Spike- marked increase in voltage and amperage followed by lighting or catastrophic power failures.
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3 form facors for notebooks.
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Desktop Replacement, Thin and Light, Ultra Portable, Tablet.
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Centrino?
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Bundle of processor, chip set, and wireless card designed by Intel for notebook computers.
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5 Questions for client interested in purchasing a notebook.
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1. What are you using it for?
2. Travel? 3. Security needs? 4. Desktop repl? Bling? 5. How important is speed? |
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Name at least 5 accessories you could attach to a notebook quote.
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Carrying Case, Batteries, Warranty, Adapters, Port Replication, Memory, Mouse, Keyboard, Car Charger.
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2 Mfrs of PDA's.
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Palm, HP, Symbol, Dolphin, Garmin, Sandisk, Sharp.
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3 Diff between "desktop repl" and "ultra portable" notebook.
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Size, Weight, Optical drive-d.r. yes, ultra no, Proc speed- d.r. fast, ultra slow, Batt life- d.r. less, ultra more, screen/keyboard size d.r. big, ultra small.
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What is diff between switch and router?
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1.Switch- Level2 intel, Router Level3. 2. Switch filters and forwards packets, Router routes packets along networks. Switch passes info to LAN, Router works between LANs.
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Firewall?
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Hardware and software components designed to protect a private comp from unauthorized access, establishes access control policies, limits incoming and outgoing traffic.
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3 wireless LAN standards?
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802.11a, 802.11b, 802.11g
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What is VPN?
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Virtual Private Network- a network constructed by using public wires to connect nodes. Tunneling through internet, secured and encrypted.
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Which media layer does data move when using a router?
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Layer 3.
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Define network cables: UTP, STP, Coaxial, Fiber Optic.
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UTP- unshielded twisted pair, low cost cable used extensively for LANs and telephone conn. STP- shielded twisted pair, copper telephone wiring in which wires are coated and grounded, often used for Ethernet networks. Coax- center copper wire surrounded by insulation and separate conductor, primary cable used for cable TV and comp networks. Fiber Optic- glass or plastic threads used to transmit data, bundle of threads using light pulses, much more bandwidth than metal cables, digital not analog.
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3 Advantages of email security solution that Insight offers.
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Offsite storage, Extremely affordable, Addresses SPAM problem, Minimizes network risk and loss of productivity.
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5 Questions to ask client about email security.
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Regulatory compliance?
Can you afford not to? How much productivity lost to handling SPAM? |
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USB?
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Universal Serial Bus, external bus standard that supports data transfer rates of 12Mbps. Used to connect peripheral devices such as mouse, modems, keyboards, memory sticks, etc.
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What is a tape drive resp for on a network?
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Archival backup and storage.
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A removable drive is..
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CD ROM, floppy, USB drive, can be moved from comp to comp.
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WAN?
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Wide Area Network-
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4 Things req to build a network?
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1. NIC
2. Software 3. Cables 4. Devices |
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NIC?
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Network Interface Card- expansion board you insert in a computer so the computer can be connected to a network
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