What does the immutable bit do to a file?

942

---

What are hard links?

847

---

What is an a record, an ns record, a ptr record, a cname record, an mx record?

893

---

What does ps do?

908

---

What is linux? How is it different from unix?

954

---

What does sar provide?

878

---

What is the ssl handshake?

870

---

How to connect to a remote server via ssh?

909

---

What is a typical size for a swap partition under a linux system?

982

---

What is the difference between soft and hard mounting points?

869

---

What is a zombie process?

949

---

State the difference between swap partition and a swap file?

944

---

What is ld_library_path?

938

---

What is the difference between an environment and a local variable?

918

---

What does ls -r do?

1007

---