6. What layer converts data into Packets?* W6 u5 Q* I8 h2 y0 B
A. Network
$ l8 z: w4 [" f0 v2 v" S" _* [B. Application2 c) A% L6 p3 W/ k d/ g
C. Physical) x$ x5 I- N- c' x: A
D. Data Link, ^# u0 h! ^3 F0 \# o
7. What layer converts data into Frames?
8 a: o) m# Q8 D2 M3 L5 MA. Application6 T0 g; i/ @* l& ]
B. Physical
- [/ L2 y _9 |. l0 _: s7 ?C. Data Link" z( E; x( i* i/ W8 k2 ~- [* B
D. Transport9 S ?& r* W1 [2 d$ j4 G
8. What layer converts data into bits?
, G7 `; E% c# GA. Application2 S0 i8 L& h4 C' b
B. Session
: z8 f) E& d8 M. }1 F6 G4 w! `C. Data Link$ A# H2 P ~; z2 H- |" ^: e5 p! I% ]
D. Physical
, [3 J7 Z" C8 C1 |All of the layers need to convert data into something that
! X, H; o! A$ a& G6 qthey can pass down to the next level, with the exception of e% R( z- v% C! y Y6 A D
the Application layer which hands data to the Presentation layer.
B o0 `5 c6 @1 tThe Presentation layer encrypts, and compresses
9 Q/ C/ y, x7 q5 B# T+ jbefore sending it to
, @1 u- Z' ^* C. O3 o0 E9 Vthe Session layer for it s first conversion.8 Y" ?: z6 G, G- G/ S
9. Which layer is most concerned with getting data
* F# D- n& u3 qfrom the beginning to the final destination?. S' Q3 B4 [* x- E5 @" [
A. Application2 [1 _4 _6 R$ u2 _
B. Presentation: p& q: J" _" k2 B6 v- p( Z+ P
C. Session9 F% Z' i7 p; K, i
D. Transport3 E: z& U% m1 r* c1 L
The transport layer is most concerned with reliable transportation
/ @ G/ t- d$ j) Z8 Jfrom one end to the other.4 A6 B1 {+ n! u, g; y
10. Which of the following is not a part8 n0 l6 V6 z! k1 g1 j9 n* b4 D9 e
of the Session layer?
$ R& [; y7 w0 C3 k) w/ `A. Establishing a session
' h) T6 o* m/ TB. Ensuring error free segments
% [" i2 r8 [& u5 `* [C. Ending a session
0 T8 p9 p6 o4 C7 A* b$ qD. Keeping the sender and receiver from sending a message
" A0 D5 s0 f, J6 q1 J% h# jat the same timeThat is the job of the Transport layer. |
发表于 2012-8-3 19:18:10
