Deck 19: Electronic Mail Security

Question 1

S/MIME provides e-mail compatibility using the __________ encoding scheme.

A)base-64
B)MIME
C)digital signature
D)symmetric block

Answer 1

A

Question 2

the objective of MIME transfer Encodings is to provide reliable
delivery across the largest range of environments.

Answer 2

True

Question 3

there are ______ types of protocols used for transferring email.

A)two
B)four
C)six
D)three

Answer 3

A

Question 4

An Administrative Management Domain is a directory lookup service that provides a mapping between the name of a host on the Internet and its numerical address.

Question 5

A Message Store cannot be located on the same machine as a MU
A.

Question 6

S/MIME provides authentication through the use of _________ .

A)asymmetric block encryption
B)symmetric block encryption
C)radix-64
D)digital signatures

Question 7

Base64 transfer encoding is also known as radix-64.

Question 8

In virtually all distributed environments, electronic mail is the
most heavily used network-based application.

Question 9

For the text type of body no special software is required to get the
full meaning of the text aside from support of the indicated
character set.

Question 10

__________ is a security enhancement to the MIME Internet email format standard based on technology from RSA Data Security.

A)S/MIME
B)SPF
C)DKIM
D)HttPS

Question 11

__________ email security threats could prevent end users from being able to send or receive email.

A)Authenticity-related
B)Integrity-related
C)Confidentiality-related
D)Availability-related

Question 12

RFC 5322 defines a format for text messages that are sent using electronic mail.

Question 13

the MIME-Version field must have the parameter value 1.0 in
order for the message to conform to RFCs 2045 and 2046.

Question 14

the bulk of the MIME specification is concerned with the definition of a variety of content types.

Question 15

Integrity-related email security threats could result in unauthorized disclosure of sensitive information.

Question 16

SMtP can transmit executable files and other binary objects.

Question 17

Native form is a format, appropriate to the content type, that is standardized for use between systems.

Question 18

Post Office Protocol allows an email client to download an email
from an email server.

Question 19

A Message transfer Agent is like a packet switch or IP router in that its job is to make routing assessments and to move the message closer to recipients.

Question 20

DKIM is designed to provide an email authentication technique that is not transparent to the end user.

Question 21

________ is the standardized way for a sending domain to identify and assert the mail senders for a given domain.

Question 22

Video content will be identified as _________ format.

A)GIF
B)MPEG
C)BMP
D)JPEG

Question 23

the __________ is a directory lookup service that provides a mapping between the name of a host on the Internet and its numerical address.

A)ADMD
B)POP
C)SMtP
D)DNS

Question 24

the __________ operates on behalf of user actors and user applications and is their representative with the email service.

Question 25

___________ allows email senders to specify policy on how their mail should be handled, the types of reports that receivers can send back, and the frequency those reports should be sent.

A)MUA
B)DMARC
C)DKIM
D)MtA

Question 26

the _________ accepts the message submitted by a Message User Agent and enforces the policies of the hosting domain and the requirements of Internet standards.

A)Message Store
B)Mail Submission Agent
C)Message transfer Agent
D)Mail Delivery Agent

Question 27

__________ is a security enhancement to the MIME Internet e-mail format standard based on technology from RSA Data Security.

Question 28

S/MIME provides for four message-related services: authentication, _________ , compression, and email compatibility.

Question 29

the _________ type refers to other kinds of data, typically either uninterpreted binary data or information to be processed by a mail-based application.

Question 30

Internet mail architecture is currently defined in RFC __________.

Question 31

typically housed in the user's computer, a _________ is referred to as a client e-mail program or a local network e-mail server.

A)Mail Submission Agent
B)Message transfer Agent
C)Message Store
D)Message User Agent

Question 32

the two types of reports that DMARC reporting provides are aggregate reports and _________ reports.

Question 33

to provide transparency for e-mail applications, an encrypted message may be converted to an ASCII string using _________ conversion.

Question 34

For the __________ subtype the order of the parts is not significant.

A)multipart/mixed
B)multipart/digest
C)multipart/alternative
D)multipart/parallel

Question 35

the __________ subtype is used when there are multiple independent body parts that need to be bundled in a particular order.

A)multipart/digest
B)multipart/parallel
C)multipart/mixed
D)multipart/alternative

Question 36

the ________ MIME field is a text description of the object with the body; this is useful when the object is not readable (e.g.audio data).

A)Content-type
B)Content-Description
C)Content-ID
D)Content-transfer-Encoding

Question 37

the __________ field is used to identify MIME entities uniquely in multiple contexts.

A)Content-transfer- Encoding
B)Content-ID
C)Content-Description
D)Content-type

Question 38

the __________ MIME field describes the data contained in the body with sufficient detail that the receiving user agent can pick an appropriate agent or mechanism to represent the data to the user or otherwise deal with the data in an appropriate manner.

Question 39

the _________ transfer encoding is useful when the data consists largely of octets that correspond to printable ASCII characters.

Question 40

MIME is an extension to the ________ framework that is intended to address some of the problems and limitations of the use of SMtP.

A)RFC 821
B)RFC 5322
C)RFC 3852
D)RFC 4871

Question 41

DANE defines a new DNS record type, __________ , that can be used for a secure
method of authenticating SSL/tLS certificates.

Question 42

the _________ transfer encoding, also known as radix-64 encoding, is a common one for encoding arbitrary binary data in such a way as to be invulnerable to the processing by mail-transport programs.

Question 43

___________ is a directory lookup service that provides a mapping between the name of a host on the Internet and its numeric IP address.

Question 44

__________ is a specification for cryptographically signing e-mail messages, permitting a signing domain to claim responsibility for a message in the mail stream; message recipients can verify the signature by querying the signer's domain directly to retrieve the appropriate public key and thereby confirming that the message was attested to by a party in possession of the private key for the signing domain.

Question 45

S/MIME uses the following message content types: Data, SignedData, EnvelopedData, and ___________ .