1 . Which security protocol or measure would provide the greatest protection for a wireless LAN? WPA2 cloaking SSIDs shared WEP key MAC address filtering 2 . Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request is sent by computer 5. Which device or devices will receive this message? only computer 4 computer 3 and RTR-A computer 4 and RTR-A computer 1, computer 2, computer 4, and RTR-A computer 1, computer 2, computer 3, computer 4, and RTR-A all of the computers and the router 3 . Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal? only hosts A and B only hosts A, B, and C only hosts A, B, C, and D only hosts A, B, C, and E 4 . Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destination address of 192.168.1.161...
If you want to find out how many UTF-8 bytes a letter in a PHP string has then:
ReplyDeleteprint strlen(mb_substr($string, 0, 1, "utf-8"));
strlen() returns the raw byte length, while mb_substr() returns a "character" according to the charset/encoding. In this example from position 0.
ASCII is 7 bits.
ReplyDeleteMost other languages use 8 bits (1 byte).
Many easter languages (Chinese, Japanese) use 16 bits (2 bytes).
Unicode is usually 32 bits (4 bytes).
How a character is stored and represented depends on the programming language and the platform you are using.