Test 1
What are communication device?
Hardware component that enables a computer to send and receive data, instructions and information
What is an output device?
Hardware that converts info to one or more people
Why do we have a service desk?
High efficiency, One point to log/record incidents/problems, Easy to manage, Keep all the organization focus on own work
What is storage?
Holds data instructions and information for future use Storage media Physical material on which data instructions and Storage medium is physical material
What does a server do?
Host web applications, stores users, and program data, and performs security authorization tasks.
What does ITIL stand for?
IT Infrastructure Library
What is ITIL?
A library that can be used for organizing and managing IT infrastructure, development and operations
What is a service desk?
A person or a department serving as the coordinator of information concerning and activity Time/ satisfaction and cost
What is MySQL?
A relational SQL Database Management System (RDBMS); database server. IT has a open-source license
What are the 2 main components of the motherboard?
1. CPU 2. Memory
What are the categories of computers?
1. Personal Computer (PCs) 2. Mobile Computers and Mobile Devices 3. Game Consoles 4. Servers 5. Mainframes 6. Supercomputers 7 Embedded Computers...
How does a personal computer boot?
1. Power supply sends signal to components in system unit, 2. Processor accesses Bios to start boot loader which starts computer, 3. BIOS runs tests, called the POST to check components such as mouse, keyboard, and adapter cards, 4. Device discovery( ports, network cards, etc), 5. BIOS looks over system files on USB dlah drive or CD/DVD drive, and then drive C master boot record, 6. Kernel core of operating system loads into RAM Operating system and displays desktop on screen
What is service Operation?
A stage in the lifecycle of a service. Service operation coordinates and carries out the activities and processes required to deliver and manage services at agreed levels to business users and customers. Service operation also manages the technology that is used to deliver and support services. Service operation includes the following processes: event management, incident management, request fulfilment, problem management, and access management. Service operation also includes the following functions: service desk, technical management, IT operations management, and application management. Although these processes and functions are associated with service operation, most processes and functions have activities that take place across multiple stages of the service lifecycle.
What are networks?
A telecommunications network that allows computers to exchange
What is Standby Power?
Additional power supply
What is Apache?
An open source http server for modern operating systems including linux
Business Continuity Management
Builds the disaster recovery/ continuity plans The process that ensures that the required IT technical services and facilities
What is the system unit?
Case that contains the main components of the computer used to process data
What is a processor?
Central processing Unit (CPU) The electronic component that interprets and carries out the basic instructions that operate the computer
What is a server?
Central repository, the command center, and the central hub of the client server loop model.
What is Change management?
Change advisory board Assign risk or priority for the change Changes are authorized Peoples are informed about particular changes Back up plan
What is Moore's Law?
Circuit capacity would double about every 1.6 years or 2 years
What are the limits of Moore's Law?
Circuits eventually cannot be shrunk further Too many switching transistors on chip generates excessive heat
What are the differences between SSD vs USB Flash Drive?
Connector:: USB or SATA, Quality of the Flash memory controller , NAND technologies MLC
What is memory?
Consists of electronic components that store instructions to be executed and data need by those instructions Electronic components that store instructions data and results Consists of one or more chips on the motherboard or other circuit board Each byte stored in unique location called and address, similar to seats in a concert hall
What is HTTP Daemon?
Daemons answers the requests automatically and serves the hypertext and multimedia documents using HTTP.
What is Configuration management?
Database Records all info from the process into the db Central repository for all configurative items
What are the common components inside system unit?
Processor Memory Adapter cards Sound card Video card Drive bays Power Supply
What are the 3 different types of power supply?
Direct Line power, Uninterrupted Power Supply, and Generator
What are DNS?
Domain name servers
What were the computers of 1960's?
Early Mainframe
Why is Cable management necessary?
Ease of use, Fire Safety, and Trouble Shooting
What is power?
Electrical energy transferred per unit
What is ENIAC?
Electronic Numerical Integrator and Computer
What are the downsides of Uninterrupted Power Supply?
Energy as long as battery
What is Fire Protections for server rooms?
Firewalls, Halon Fire Suppression, Water Sprinkler System
What are the downsides of Generator?
Gas
What is ITSM?
IT Service Management
What is the IT service Lifecycle?
ITIL is organized around a service lifecycle which includes, service strategy, service design, service transition, service operation, and continual service improvement.
What is the information processing cycle?
Input, Process, Output, Storage, Communication
What is the IDF?
Intermediate Distribution Facility
What ITIL is not used for what?
Is NOT A method or methodology
Why do data centers have have High voltage?
It Decreases the loss from heat
What are examples of input devices?
Keyboard Mouse Webcam Scanner Microphone
What is problem management?
Looks into root of problems, comes up with resolution
What is MDF?
Main Distribution Facility
Whaat is the motherboard?
Main circuit board of the system unit Contains expansion slots, processor chips, and memory slots Also called system board
What are the advantages of IT service?
Makes quality implements measurable Makes IT service management processes become manageable Provides a consistent way of working provides a standardization of terminology Improves the communication process
What were Computers of the 1940's ?
Mark I
What are the similarities between SSD vs USB Flash Drive?
NAND memory
What is continual Service Improvement?
Offers to measure the tech and efficiency and effectiveness of the process used in the overall management of services
Where does it occur?
Over cables telephone lines, cellular radio networks, satellites, and other
What is the equation for power?
P( watts) = U (Voltage) * I(Amps)
What does a server farm do?
Popular sites receive millions of requests per second, Any given web or data server is not excessively overloaded, Load balancers: distribute incoming requests to available machines
What is USB flash drive?
Portable storage device Small and lightweight enough to be transported on a keychain or in a pocket
What are the key elements of Data center infrastructure?
Power, Standby Power, Cooling, Fire Protection, Site Selection
What are examples of output devices?
Printer Monitor Speaker
What does ITIL do?
Provides a best practice framework for identifying, planning, delivering , improving. ITIL framework describe the "what" of service, not the "how" Delivering value and Maintaining a minimum level of competency
What is a hard disk?
Provides grater storage capacity than a USB flash drive Most are housed inside the system unit
What is the speed comparison?
SD: 712c MB/s HDD: 300 MB/s USB2.0: 60 MB/s
What is the compact discs?
Secondary storage Flat Round portable metal disc CD DVD
What is PHP?
Server-side, scripting language for web development?
What are the ITIL publications?
Service Strategy Service design Service transition Service operation Continual Service improvement
What are real world examples of design?
Smartphone tech, Database of frequent customers, ID card readers, and Easy Graphic Interfaces
What does ITIL used for?
Systematic approach to high quality IT service delivery Document best practice for IT service management Demonstrate compliance and measure improvement ITIL is a best-practice process framework Service Delivery Service support Others Shows the foals, dental activities, input nd outputs of the various processes. A see of detailed practices for IT service management that focuses on aligning IT services with the needs of business
Why do we use ITIL?
TIL describes the processes needed to manage the IT infrastructure efficiently and effectively in order to gurarntee the services
What is Release management?
Testing release and Distribution release
What is capacity?
The amount of information that can be held in a memory store; Number of bytes a storage medium can hold
Why is Cooling needed in servers?
The servers can overheat, and need to be cooled
What is Service desk for?
To act as a Single Point Of Contact (SPOC) for handling customer, user, and related issues to meet both the Customer/ User and business objectives, and to facilitate the restoration of normal operation business impact.
What does PHP allow?
To manipulate web page content on the server before a page is delivered to the client browser
What is Service Transition?
Translate design to the operation The design is built, tested and moved into production to enable business customer
what is service strategy?
Understanding who the IT customers are, the service offerings that are required to meet the customer needs, the IT capabilities and resources that are required to develop these offerings, and the requirements for executing them successfully
What is the equation for Voltage?
V=IR
What is the equation for watts?
Watts = Voltage * Amps
What is a computer?
digital computer is a machine that can do work for people by carrying out instructions given to it A sequence of instructions describing how to perform a certain task called a program The electronic circuits of each computer can recognize and directly execute a limited set of simple instructions which all its programs must be converted before they can be executed
What is current?
electrical charge flow rate past a point
What is service design?
ensures that new and changed services are designed effectively to meet customer expectations
What is an input device?
hardware used to enter data and instructions
What is a server farm?
large collection of coordinated servers
What is incident management?
logs incidents as problems/ erros Send requests for change Urgent
What do Domain Name Servers do?
maintain directory of domain names and translate them to internet protocol (IP ) addresses.
What is voltage?
potential difference
