What does the immutable bit do to a file?

953

---

What are hard links?

858

---

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

898

---

What does ps do?

921

---

What is linux? How is it different from unix?

970

---

What does sar provide?

887

---

What is the ssl handshake?

880

---

How to connect to a remote server via ssh?

920

---

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

996

---

What is the difference between soft and hard mounting points?

878

---

What is a zombie process?

958

---

State the difference between swap partition and a swap file?

956

---

What is ld_library_path?

954

---

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

925

---

What does ls -r do?

1015

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