Cisco interview questions

How would you reverse a single linked list? How would you define bit fields in C? What are the common IPC techniques in UNIX? What is the difference between micro-kernel and macro-kernel? Briefly explain the need for memory protection Why do we need POSIX standards? Thread synchronization and critical sections Instruction pipelining TCP connection establishment and tear down process MIPS architecture and need for RISC processors in Embedded environment C questions to check familiarity with pointer arithmetic.