IS 3120 CHAPTER 13 Flashcards
The ratio of the total number of bits transmitted to the bits that were modified in transmission
Bit error rate (BER)
A primary global telecommunications carrier building upon its strong global connections and former monopoly role.
British Telecom (BT)
Planning primarily for the people response to a disaster, The elements that would be included are policy related to the continuation of business during and immediately following a disaster.
Business continuity planning (BCP)
.A facility owned and operated by a telecommunications carrier where all its common switching equipment is located.
Central Office (CO)
Computer software used to prepare mechanical or engineering drawings. This software is used widely in creating network diagrams and “as built” documentation of equipment racks and data centers.
Computer-aided design (CAD)
Planning primarily for the technical response to a disaster.
Disaster recovery planning (DRP)
A measurement or calculated number for the mean amount of time between equipment failures. This was measured for years, or even decades, in the traditional telco network, while it may be measured in weeks, days, or even hours in modern IP networks.
Mean time between failures (MTBF)
A measurement or estimate of the time required to install a specific piece of equipment or an entire service.
Mean time to install (MTTI)
A measurement or calculated number for the mean amount of time required to repair a specific piece of failed equipment.
Mean time to repair (MTTR)
A facility operated by an ISP where all its common routing equipment, and very often servers, are located.
Point of presence (POP)
A term for government-owned telecommunications monopolies outside the US. Traditionally these functions were housed in a single government ministry.
PTT (postal, telephone, and telegraph) agency)
.A special version of laval area network where all devices connected to the SAN are storage devices or servers required to manage storage devices.
Storage area network (SAN)
Usually refers to a specific set of bits in the header of IP packets that indicate what type of priority treatment the packet expects from intermediate relaying systems (routers). This can also refer to the desirable treatment, and not specifically to the bits themselves.
Type of service (TOS)
A network built using public/shared network services, but which has the appearance to the users of a private network. Users, for instance, cannot reach the Internet directly from this nor can Internet users reach it without special client software. This almost universally use some sort of cryptography to protect the integrity of the information.
Virtual private network (VPN).
- One of the first steps in change control is determining a normal baseline from which changes will be made.
TRUE OR FALSE
TRUE
- Which of the following is not a generation of networking as outlined in this chapter?
- First generation: mainframe computers owned and operated by the organization
- Second generation: minicomputers owned and operated by the organization
- Third generation: personal computers owned and operated by individuals
- Fourth generation: PCs and mobile devices owned and operated by individuals
- Fifth generation: mobile devices, including Droids and tablets linked to social networking sites such as Facebook
Fifth generation: mobile devices, including Droids and tablets linked to social networking sites such as Facebook
- Which of the following is not a usual parameter in a network Service Level Agreement?
- Availability
- Delay variation
- Frequency response
- Delay
- Packet delivery
Frequency response
- The use of serve-level agreements in networking originated in ___.
- the US by MCI
- Britain by BT
- Britain by Mercury Communications
- France by France Telecom
- Germany by the Deutsch Bundespost
Britain by BT
- Packet deliver/discard ___.
- Are two very different measurements
- Is enforced by the PDD algorithm
- Is enforced based on IP TOS bits
- Impacts certain applications more than other
- None of the above
Impacts certain applications more than other
- Delay ___.
- Occurs in both circuit and packet networks
- Occurs only in circuit networks
- Occurs only in packet networks
- Occurs in neither circuity nor packet networks
Occurs in both circuit and packet networks
- Delay variation ___.
- Occurs only in packet networks
- Occurs only in circuit networks
- Occurs in both circuit and packet networks
- Occurs in neither circuit nor packet networks
Occurs only in packet networks
- SLA metrics from different carriers and service provider ___. Choose all that apply.
- Are possibly measured in different places in the network
- May or may not represent round-trip delay
- Are measured and calculated per RFC 2109
- Are measured and calculated per TIA 1405
- None of the above
Are possibly measured in different places in the network
May or may not represent round-trip delay
- Availability calculations are differentiated based on ___ availability.
- Network, component, and service
- Day, month, year
- IETE, ITU, and Telco
- End system, intermediate system, and server
Network, component, and service
- MTBF stands for ___.
- Mean time between failures
- Maximum time between failures
- Minimum time between failures
- Mean time before failures
Mean time between failures
- Internal service-level agreements ___. (Choose all that apply)
- Replace external service agreements
- Can never be better than external SLAs
- Often promise different levels of service to different applications or traffic types
- Often tiered delay and delay variation metrics based on distance between the communicating end points
Can never be better than external SLAs
Often promise different levels of service to different
applications or traffic types
Often tiered delay and delay variation metrics based on distance between the communicating end points
- Change control borads are technical bodies and do not need to consider policy, finance, or other nontechnical aspects of proposed changes.
TRUE OR FALSE
FALSE
- BCP stands for ___.
- Business continuity planning
- Business career planning
- Business continuity policy
- Business continuity practices
Business continuity planning
- DRP stands for ___.
- Disaster recovery planning
- Disaster recovery procedures
- Design recommendation policy
- Design review policy
Disaster recovery planning
- An organization must choose between BCP and DRP as an approach for dealing with upland events affecting their telecommunications infrastructure.
TRUE OR FALSE
FALSE
