What does the immutable bit do to a file?

1006

---

What are hard links?

901

---

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

951

---

What does ps do?

985

---

What is linux? How is it different from unix?

1008

---

What does sar provide?

932

---

What is the ssl handshake?

921

---

How to connect to a remote server via ssh?

969

---

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

1050

---

What is the difference between soft and hard mounting points?

925

---

What is a zombie process?

1021

---

State the difference between swap partition and a swap file?

998

---

What is ld_library_path?

1002

---

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

970

---

What does ls -r do?

1071

---