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COMMUNICATIONS Environment Practice Questions

1) HL7 standard assumes that communications env will provide the followingcapabilities :

i. Error free transmission

ii. Ii. Character conversioniii. Iii. Message length

iv. Secured network area

Answer : a. ii,iii,iv onlyb. I and ii only

c. ii and iii only

d. I, ii and iii only correct answer

e. I, ii and iv only2) Which of the following capabilities does the Hl7 2.7 standard assume that the

communications environment will provide?

i. Ethernet network

ii. IP addressing of the sending and receiving sitesiii. character conversion if the two machines exchanging data use different character

setsa. None

b. B. iii only correct answer

c. Ii and iii

d. I and iie. I , ii and iii

Answer : b

3) HL7 standard assumes communications environment will providea. error free transmission

b. character set conversionc. declaration of message lengthd. security of data transferred

Answer : a. a,c,d

b. a,b,cc. b,c,d

d. a,b,c,d

e, a and b correct answer

4) HL7 makes no supposition fori. Owner of data

ii. design of sending and receiving application

iii. architecture of sending and receiving applicationv. none

a. d

b. a,b,c correct answerc. b,c

d. a,c

e. a,b

Answer : b

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5) For primitive point-to-point connectivity what is mode of transfer of HL7

messages?

a. SNA LU6.2

b. FTP

c. SMTPd. TCP/IP

e. RS-232 correct answer

Answer : e6) Regarding HL7 Lower Level Protocol (LLP) which is true?

i. LLP are defined in HL7 implementaiton guide

ii. LLP forms official part of standard

iii. LLP can be used in LANAnswer a. ii, iii

b. I,iii correct answer

c. I,ii,iii

d. I and iie. I only

7) Name the environments that supports robust transport levelbut do not meet highlevel requirements

a. IBM SNA LU6.2

b. SUN Microsystems NFS

c. TCP/IP, DECNET & SNA correct answerd. Point to point connections

e. Pipes in UNIX system

8) HL7 does not explicitly support, but can be used with systems that supporti. store and forward

ii. Internal broadcast

iii. data broadcast facilitiesAnswer : a. I,iii

b. ii, iii

c. I,ii,iii correct answerd. i

e. I,ii

9) The examples of environments which provide high level services

and can work upto presentation level area. IBM SNALU6.0

b. IBM SNA LU 6.2 correct answer

c. TCPd. Pipes

e. UNIX

10) Message definition has following type of relationship with LLP(Lower level protocol)

a. anticipated correct answer

b. always related

c. no relationship

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d. likely

e. expected

Answer : a11) the environments of interest to HL7 includes which of the

following:

i. environments that support robust transport level, but do not meethigh level requirements. This includes env such as

TCP/IP,DECNET, SNA

ii. ISO and propreitory network that implement upto presentationandother high level services. IBM SNALU6.2 and sun Microsystems

NFSare examples of complete propreitory network

iv. two or more machines running on same physical/logical machines that

are not tightly integrated.In these env messaging capabilities areprovided by inter process communications(eg pipes in UNIX system)

Answer : a. I,ii

b. I,ii,iii correct answer

c. iid. I,iii

e. ii and iii