管理資訊系統KC6/7/8

35問 • 1年前

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A characteristic or quality that describes a particular database entity is called a(n):

attribute.

Data __________ occurs when the same data is duplicated in multiple files of a database

redundancy

The logical view of a database:

presents data as they would be perceived by end users.

A(n) __________ represent data as two-dimensional tables.

relational DBMS

Which of the following is an automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security?

Data dictionary

Which of the following is the most prominent data manipulation language today?

SQL

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called:

normalization

The term big data refers to all of the following except:

datasets with fewer than a billion records.

Data mining allows users to:

find hidden relationships in data.

_________ tools are used to analyze large unstructured data sets, such as email, memos, and survey responses to discover patterns and relationships.

Text mining

Which of the following is a device that sends packets of data through different networks assuring they go to the correct address?

Router

What are the four layers of the TCP/IP reference model?

Application, Transport, Internet, and Link Interface

On which of the following protocols is the Internet based?"

TCP/IP,

A(n) ______ signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.

digital

What service converts natural language names to IP addresses?

DNS

IPv6 has been developed in order to:

create more IP addresses,

Web browser software requests web pages from the Internet using which of the following protocols?"

HTTP

Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n):

uniform resource locator,

Which of the following pulls content from websites and feeds it automatically to users' computers?

RSS

A(n) ______ is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.

ISP

All of the following are physical components of an RFID system except:

bar codes

4G networks use which of the following standards

LTE and WiMax

Bluetooth can be used to link up to ______ devices within a 10-meter area using low-power, radio-based communication.

eight

The 802.11 set of standards is known as:

Wi-Fi

Which of the following would be the best use of RFID for a business?

Managing the supply chain

WannaCry is an example of which of the following?

Ransomware

Trojan horse

is software that appears to be benign but does something other than expected.

Using numerous computers to inundate and overwhelm the network from numerous launch points is called a(n) _______ attack.

DDoS

An employee clicks on a link in an email from what looks like a fellow employee and is taken to a fraudulent website which asks for personal information is an example of:

spear phishing

When hackers gain access to a database containing your personal private information, this is an example of:

identity theft.

Two-factor authentication utilizes a(n):

a multistep process of authentication

A firewall allows the organization to:

enforce a security policy on data exchanged between its network and the Internet.

Currently, the protocols used for secure information transfer over the Internet are:

SSL, TLS, and S-HTTP.

In which method of encryption is a single encryption key sent to the receiver so both sender and receiver share the same key?

Symmetric key encryption

Comprehensive security management products, with tools for firewalls, VPNs, intrusion detection systems, and more, are called ________ systems.

UTM

IELTS speaking-part 1

翁凌 · 35問 · 9ヶ月前