уч пос НАДЕЖНОСТЬ ИНФОРМАЦИОННЫХ СИСТЕМ

49@0A?@545;5==>9 49 49?> 49 49 49M:A?>=5=F80;L-49

49=><C 4970:>=C;49

49349)49 49A8AB5<0 49<>65B 49=0E>48BLAO 492 4942CE 49A>AB>O=8OE:49 49A>AB>O=88 49 49 49 49z49(49t49)49 49=49 49149(49@01>B>A?>A>1=>AB8)49 498 49A>AB>O=88 49z49(49t49)49 49=49 49249 49(49@5<>=B0)49.49

49­>2545=85 49A8AB5<K 49A 49B>G:8 497@5=8O 49@01>B>A?>A>1=>AB8 49>?8H5< 493@0D>< 49?5@5E>4>2 49(49@8A.49349)49.49 490 49@8A.49349 49:@C6:8 49A 49=><5@>< 49>7=0G0NB 49A>AB>O=85 49A8AB5<K,49 490 49AB@5;:8 49(494C38)49 49 49=0?@02;5=85 49?5@5E>4>2 49A8AB5<K 498 4925@>OB=>AB8 49MB8E 49?5@5E>4>2 4970 4915A:>=5G=> 49<0;K9 498=B5@20; 492@5<5=8.49 495@>OB=>AB8 49?5@5E>4>2 492 49A8;C 49A45;0==KE 49?@54?>;>65=89 498 49A2>9AB20 49?>:070B5;L=>3> 4970:>=0 50=0456=>AB8 50=5 507028AOB 50>B 502@5<5=8.50 502545< 5025@>OB=>AB8 50=0E>645=8O 50A8AB5<K 502 50A>AB>O=8OE 50150 508 50250 50:0: 50P50₁₅₀(50t50)50 508 50P50₂₅₀(50t50)50.50 50‑G5284=>,50 50GB> 50P50₁₅₀(50t50)50 50+50 50P50₂₅₀(50t50)50 50=50 50150 504;O 50;N1>3> 50<><5=B0 502@5<5=8.50 50 0AA<>B@8< 50?>2545=85 50A8AB5<K 502 508=B5@20;5 502@5<5=8 50[50050,50 50t50 50+50”t50]50.50 50">340 50A8AB5<0 502 50<><5=B 50t50 50+50”t50 501C45B 50=0E>48BLAO 502 50A>AB>O=88 50150,50 505A;8 50>=0 502 50<><5=B 502@5<5=8 50t50 50=0E>48;0AL 502 50MB>< 50A>AB>O=88,50 508 5070 502@5<O 50”t50 50=5 50=01;N40;>AL 50>B:07>2;50 500 50B0:65,50 505A;8 50A8AB5<0 502 50<><5=B 502@5<5=8 50t50 50=0E>48;0AL 502 50A>AB>O=88 50250,50 508 5070 502@5<O 50”t50 501K; 5070:>=G5= 5055 50@5<>=B.50 50">340 50?> 50D>@<C;5 50?>;=>9 5025@>OB=>AB8 50

50

50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50P50₁₅₀(50t50 50+50 50”t50)50 50=50 50P50₁₅₀(50t50)50e50 50^-50»”t50 50+50 50P50₂₅₀(50t50)50(50150 50e50 50^-50¼”t50)50.50

50"0: 50:0: 50e50 ^{50 50»”t50} 50H" 50150 50»”t50,50 50 50e50 ^{50 50¼”t50} 50H" 50¼”t50,50 50B>

50

50 50 50 50 50 50 50 50 50 50 50 50 50 50 50P50₁₅₀(50t50 50+50 50”t50)50 50=50 50P50₁₅₀(50t50)50(50150 50»”t50)50 50+50 50P50₂₅₀(50t50)50¼”t50.50

50=0;>38G=K5 50@0AAC645=8O 50?@82>4OB 50: 50C@02=5=8N

50

50 50 50 50 50 50 50 50 50 50 50 50 50 50P50₂₅₀(50t50 50+50 50”t50)50 50=50 50P50₂₅₀(50t50)50(50150 50¼”t50)50 50+50 50P50₁₅₀(50t50)50»”t50.50

51­@545;L=K9 51?5@5E>4 51?@8 51”t51’!051 51405B 5148DD5@5=F80;L=K5 51C@02=5=8O,51 51>?8AK20NI85 51?>2545=85 51A8AB5<K 512> 512@5<5=8:51

51

51 51 51 51 51 51 51 51 51 51 51 51 51 51 5151 51E51M51B51E51D51 51E51q51u51a51t51i51o51n51.51351 51 5151₅₁51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51(51151)51

51#@02=5=8O 512840 51(51151)51 51?>;CG8;8 51=0720=85 5148DD5@5=F80;L=KE 51C@02=5=89 51>;<>3>@>20-51'5?<5=0.51 51 5H0O 518E,51 51<>6=> 51?>;CG8BL

51

51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51P51₁₅₁(51t51)51 51=51 51e51 51 ^{(51»+51¼)51t51} 51{51!₁₅₁+51 5151 51E51M51B51E51D51 51E51q51u51a51t51i51o51n51.51351 51 5151₅₁51¼ 51e51 51^{(51»+51¼)51Ä}d51Ä}51,51

51GB> 51?>72>;O5B 51>F5=8BL 5125@>OB=>AB8 51A>AB>O=8O 51A8AB5<K 512 517028A8<>AB8 51>B 51=0G0;L=>3> 51A>AB>O=8O

51

5151 51E51M51B51E51D51 51E51q51u51a51t51i51o51n51.51351 51 5151₅₁51;51

5252 52E52M52B52E52D52 52E52q52u52a52t52i52o52n52.52352 52 52525252

52 52 52 52 52 52 52 52 52 52 52 52 52­@8 52t52’!‑" 52 5252 52E52M52B52E52D52 52E52q52u52a52t52i52o52n52.52352 52 5252₅₂52.52