According to ISTQB Syllabus, Systems of Systems;

According to ISTQB syllabus, systems of systems;

A) Contain interconnected hardware, software applications and communications. II. Include big bang merging of independent collaborating systems to avoid creating the entire system from scratch. III. Can be less reliable than individual systems IV. Characteristics include; long duration of projects, version management and regression tests at systems of systems level.
B) I, II and IV are true.
C) I, II are true and III is false.
D) I, III, and IV are true, II is false.
E) II,III and IV are true, I is false.